Assembled Structures

Abstract

To provide an assembled structure that is assembled in a balanced and stable state.SOLUTION: In an assembled structure of the present invention, each of the side portions on both sides in at least one direction of the front-back direction of the assembled structure orthogonal to the height direction of the assembled structure and the width direction of the assembled structure orthogonal to each of the height direction and front-back direction comprises a combination of four panels, and length of bend lines of each of the four panels is equal, and in each of the side portions, the four panels are assembled such that a rectangle having the bend lines of each of the four panels as four sides appears in each side portion.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to an assembled structure that is constructed by combining a plurality of panels and has a cavity therein. [Background technology]

[0002] Assembled structures that are easily constructed by combining multiple panels are used for a variety of purposes, such as temporary living spaces or workspaces. Such structures have a cavity inside, and users of the structure move around within the cavity or pass through the cavity when traveling to a predetermined destination.

[0003] An example of the above-mentioned assembled structure is the structure described in Patent Document 1. The structure described in Patent Document 1 has walls and a roof made of cardboard, each of which is constructed by connecting multiple panels, and people can perform prescribed work inside the structure. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-308956 Summary of the Invention [Problem to be solved by the invention]

[0005] The above-mentioned assembled structure is preferably one that can be assembled to have a stable structure, that is, a balanced structure is required when the multiple panels that make up the assembled structure are combined.

[0006] The present invention has been made in view of the above circumstances, and aims to solve the problems of the prior art, and specifically to provide an assembly structure that can be assembled in a balanced and stable state. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the assembled structure of the present invention is an assembled structure having a hollow portion inside, and each of the side portions on both sides in at least one of the front-to-rear direction of the assembled structure, which is perpendicular to the height direction of the assembled structure, and the width direction of the assembled structure, which is perpendicular to both the height direction and the front-to-rear direction, is constructed by combining four panels, and the lengths of the folding lines of each of the four panels are equal between the panels, and in each side portion, the four panels are combined in a way that a rectangle with the folding lines of each of the four panels as its four sides appears on the side portion. In the assembled structure configured as described above, on each of the side sections on both sides in at least one direction, the four panels that make up the side section are arranged symmetrically around a rectangle whose four sides are the folding lines of each panel. By combining the four panels in this arrangement, it is possible to assemble an assembled structure that is balanced and stable.

[0008] Furthermore, in the assembled structure of the present invention, when the assembled structure is viewed from directly above, the upper edge of one side portion in at least one direction and the upper edge of the other side portion may form the outer edge of a rectangle with four equal sides. Furthermore, in the assembled structure of the present invention, when the assembled structure is viewed from directly below, the lower edge of one side portion in at least one direction and the lower edge of the other side portion may form the outer edge of a rectangle with four equal sides. In the assembled structure of the present invention, a rectangular opening with four equal sides may be provided at the lower end of the assembled structure.

[0009] In the assembled structure of the present invention, each of the first side sections provided on both sides in the front-to-rear direction may be formed by combining four panels. In this case, it is preferable that the lengths of the folding lines of the four panels constituting the first side section are equal between the panels, and that the four panels constituting each first side section are combined in a manner that a rectangle having four sides defined by the folding lines of the four panels appears on the first side section. Each of the second side surface portions provided on both sides in the width direction may be formed by combining four panels. In this case, it is preferable that the lengths of the folding lines of the four panels constituting the second side surface portion are equal between the panels, and that the four panels constituting each second side surface portion are combined in such a way that a rectangle having four sides defined by the folding lines of the four panels appears on the second side surface portion.

[0010] In addition, in the assembled structure of the present invention, the first side portion may be formed by folding each of the four panels that make up the first side portion at folding lines, and may include an extending portion that extends outward in the front-to-back direction, and a folded portion that is continuous with the tip of the extending portion and folded back inward in the front-to-back direction. Furthermore, in the above configuration, the first side surface portion may include four extension portions and four folded portions. In this case, it is more preferable to further include an attachment piece that straddles two adjacent folded portions and is attached to each of the two adjacent folded portions.

[0011] In the assembled structure of the present invention, each of the four panels constituting each side portion may have a first portion whose planar shape is an isosceles triangle and a second portion whose planar shape is an equilateral triangle and is continuous with the first portion via a folding line. In this case, the shapes of the first portions of each of the four panels may be congruent between the panels, and the shapes of the second portions of each of the four panels may be congruent between the panels.

[0012] The assembled structure of the present invention may also include a cone-shaped top portion disposed at the upper end of the assembled structure. In this case, the top portion is placed on the upper ends of the side portions on both sides in at least one direction, and the lower edge of the top portion preferably forms the outer edge of a rectangle with four equal sides. Furthermore, in the above configuration, it is preferable that the apex portion has four apex side surfaces, and each of the four apex side surfaces has an isosceles triangle shape. Furthermore, in the above configuration, the top portion may be formed by combining two or more panels. In this case, each of the two or more panels forming the top portion may have a connecting piece, and the connecting pieces may be connected to each other when the two or more panels are combined. In addition, if the assembled structure is structured so that it can pass through the cavity in either the front-rear direction or the width direction, it is preferable that the connecting piece in the connected state extend in a direction intersecting either one of the directions.

[0013] In the assembled structure of the present invention, each of the four panels may be made of cardboard.

[0014] In the assembled structure of the present invention, the cavity may be connected to the interior of the dome-shaped structure by inserting the extension and folded-back portions into a dome-side opening provided in the dome-shaped structure.

[0015] In addition, in order to solve the above-mentioned problems, an assembly structure according to one embodiment of the present invention is an assembly structure having an internal cavity, and each of the side portions on both sides in at least one direction of the front-to-rear direction of the assembly structure, which is perpendicular to the height direction of the assembly structure, and the width direction of the assembly structure, which is perpendicular to both the height direction and the front-to-rear direction, has four triangular faces of congruent shape, and on each side portion, the four triangular faces are arranged in such a way that a quadrangle with equal sides consisting of one side of each of the four triangular faces appears on the side portion. [Effects of the Invention]

[0016] According to the present invention, an assembly structure that can be assembled in a balanced and stable state is realized. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is an elevation view of a structural unit consisting of an assembly structure and a dome-shaped structure according to one embodiment of the present invention. [Figure 2] 1 is a plan view of a structural unit consisting of an assembled structure and a dome-shaped structure according to one embodiment of the present invention. FIG. [Figure 3] FIG. 1 is a front view of a dome-shaped structure. [Figure 4] 1 is a perspective view of an assembled structure according to one embodiment of the present invention; [Figure 5] 1 is a first side view of an assembled structure according to one embodiment of the present invention. FIG. [Figure 6] FIG. 2 is a second side view of an assembled structure according to one embodiment of the present invention. [Figure 7] 1 is a plan view of an assembled structure according to one embodiment of the present invention; [Figure 8] FIG. 2 is a bottom view of an assembled structure according to one embodiment of the present invention. [Figure 9] FIG. 8 is a cross-sectional view of FIG. 7 taken along line AA. [Figure 10] 10 is a diagram showing a state in which an attachment piece has been removed from one end of the assembly structure in the front-rear direction, and is an enlarged view of an extension portion and a folded-back portion. FIG. [Figure 11] FIG. 10 is a diagram showing the assembled structure connected to the dome-shaped structure, and is a diagram showing a cross section taken along the height direction and normal direction of the assembled structure. [Figure 12A] FIG. 10 is a plan view showing a first example of the mounting piece. [Figure 12B] FIG. 10 is a plan view showing a second example of the mounting piece. [Figure 13A] FIG. 10 is a perspective view showing how the attachment piece is attached. [Figure 13B] 10 is a cross-sectional view showing a moment acting on a folded portion when the attachment piece is attached. FIG. [Figure 14]FIG. 2 is a perspective view showing the appearance of the partition section. [Figure 15] FIG. 10 is a diagram showing the partition section in use, and is a cross section taken along the width direction and normal direction of the assembled structure. [Figure 16] FIG. 1 is a diagram showing one of the panels that constitute the side portion of an assembled structure according to one embodiment of the present invention (part 1). [Figure 17] FIG. 2 is a diagram showing one of the panels that constitute the side portion of an assembled structure according to one embodiment of the present invention (part 2). [Figure 18] FIG. 1 shows a panel that forms the top portion of an assembled structure according to one embodiment of the present invention. [Figure 19] 1A to 1C are diagrams showing a procedure for assembling an assembly structure according to one embodiment of the present invention. [Figure 20] FIG. 10 is a perspective view showing a procedure for joining panels together. DETAILED DESCRIPTION OF THE INVENTION

[0018] One embodiment of the present invention (hereinafter referred to as the present embodiment) will be described in detail below with reference to the accompanying drawings. Note that the embodiment described below is merely an example given to facilitate understanding of the present invention and is not intended to limit the present invention. In other words, the present invention may be modified or improved from the embodiment described below without departing from the spirit of the present invention. Furthermore, the present invention includes equivalents thereof.

[0019] Furthermore, in this specification, the meanings of "same," "identical," "congruent," "equal," "even," "equally divided," and "equally spaced" may include the range of error generally accepted in the technical field to which this invention belongs. In addition, in this specification, the meanings of "vertical," "orthogonal," and "parallel" each include the range of error generally accepted in the field to which the present invention belongs, and may include cases where the deviation is less than a few degrees (e.g., 2 to 3 degrees) from the strict vertical, orthogonal, and parallel.

[0020] [About structure units] 1 and 2, the assembled structure of this embodiment constitutes a structural unit 100 together with a dome-shaped structure 110. More specifically, the structural unit 100 has a plurality of dome-shaped structures 110, and the assembled structure of this embodiment is disposed between the dome-shaped structures 110 to connect the dome-shaped structures 110 to each other. Hereinafter, the assembled structure of this embodiment will be referred to as a connected structure 10.

[0021] In the structure unit 100, multiple dome-shaped structures 110 of the same structure are arranged, and connecting structures 10 are placed between the dome-shaped structures 110. In other words, the same structure is repeated inside the unit, which allows the same equipment (for example, a camera that takes pictures inside the structure) to be installed in multiple locations in the same manner.

[0022] Before describing the connected structure 10, the outline of the dome-shaped structure 110 will be described. As shown in Fig. 3, the dome-shaped structure 110 is configured by placing a hemispherical upper dome 114 on top of a cylindrical lower dome 112, and can accommodate people, animals, objects, etc. An opening (hereinafter, referred to as a dome-side opening 116) is provided in the lower dome 112, and access to the interior of the dome-shaped structure 110 is possible through the dome-side opening 116.

[0023] The dome-side openings 116 are provided at approximately 90-degree intervals around the circumference of the dome lower portion 112. In this embodiment, the shape of each dome-side opening 116 is quadrilateral, more specifically, a square defined by a diagonal line extending vertically and a diagonal line extending horizontally. However, the shape of the dome-side openings 116 is not limited to a square, and may be a quadrilateral other than a square, a polygon other than a quadrilateral, a circle, or an ellipse.

[0024] Next, a schematic configuration of the connected structure 10 will be described. In the following, when describing the position of each part of the connected structure 10, three mutually perpendicular directions will be defined, and will be referred to as the height direction, front-rear direction, and width direction of the connected structure 10, respectively. Here, the height direction is the direction that coincides with the vertical direction perpendicular to the installation surface of the connected structure 10 when the connected structure 10 is used on the ground. Furthermore, the front-rear direction is perpendicular to the height direction, and the width direction is perpendicular to both the height direction and the front-rear direction. In the following, when explaining the positions of each part of the connected structure 10, unless otherwise specified, the explanation will be given assuming that the connected structure 10 is in use.

[0025] The connected structure 10 has the appearance shown in Figures 4 to 8, and has a hollow space S inside as shown in Figure 9. Furthermore, as shown in Figures 4 and 5, the connected structure 10 has openings 12 at both ends in the front-to-rear direction of the connected structure 10, and access to the hollow space S is possible through the openings 12. In this embodiment, the shape of the opening 12 is the same as the shape of the dome-side opening 116, that is, a square defined by a diagonal line extending in the vertical direction and a diagonal line extending in the horizontal direction. However, the shape of the dome-side opening 116 may be any shape other than a square, such as a rectangle other than a square or a circle, as long as it corresponds to the shape of the dome-side opening 116.

[0026] As described above, the connecting structure 10 is placed between the dome-shaped structures 110 to connect the dome-shaped structures 110 to each other. In this case, the connecting structure 10 is placed so that each opening 12 is adjacent to the dome-side opening 116. This allows the cavity S to communicate with the interior of the dome-shaped structures 110, and more specifically, the cavity S forms a communication passage between the dome-shaped structures 110. In other words, by passing through the cavity S in the front-to-rear direction of the connecting structure 10, it is possible to travel between the dome-shaped structures 110.

[0027] Here, an imaginary line connecting the center of one dome-side opening 116 in the dome-shaped structure 110 (more specifically, the intersection of the diagonals of the square formed by the outer edges of the dome-side opening 116) to the center of the opposite dome-side opening 116 extends linearly in the horizontal direction. Furthermore, in the connected structure 10, an imaginary line connecting the center of the opening 12 provided at the front end (more specifically, the intersection of the diagonals of the square formed by the outer edges of the opening 12) to the center of the opening 12 provided at the rear end extends linearly in the horizontal direction. This improves the expandability of the connected structure 10, and allows the connected structures 10 to be efficiently arranged in the structure unit 100.

[0028] Specifically, when the connecting structure 10 is connected to the dome-shaped structures 110, an imaginary line connecting the centers of the dome-side openings 116 and an imaginary line connecting the centers of the openings 12 are aligned in a straight line. By satisfying this relationship, it is possible to line up multiple dome-shaped structures 110 in each of two mutually perpendicular directions and connect the dome-shaped structures 110 with the connecting structures 10. In other words, in the structure unit 100, the dome-shaped structures 110 and the connecting structures 10 can be arranged in a square lattice pattern. As a result, the structure units 100 can be arranged more compactly than when, for example, the structure units 100 and the connecting structures 10 are arranged in a diagonal lattice pattern.

[0029] [About the structure of connected structures] The structure of the connection structure 10 will be described with reference to FIGS. The connected structure 10 is assembled using a plurality of panels, which will be described later, and includes a main body portion 14 and a top portion 16, as shown in Figures 4 to 8. The configurations of the main body portion 14 and the top portion 16 will be described below.

[0030] (Main body) 5 to 8, the main body 14 is a part having a shape of a semiregular polyhedron, more specifically, a modified cuboctahedron. Strictly speaking, the main body 14 has a structure in which eight equilateral triangular parts and six square parts are arranged symmetrically in the front-rear direction, width direction, and height direction (hereinafter simply referred to as the front-rear direction, width direction, and height direction) of the connected structure 10. In other words, the connected structure 10 (particularly the main body 14) is symmetrical in each of the front-rear direction, left-right direction, and height direction, and is a well-balanced and highly stable structure.

[0031] To explain the configuration of the main body 14 in more detail, the main body 14 has side surface portions 21 and 22 shown in Figures 5 and 6. The side surface portions 21 and 22 are portions that form the sides of the main body 14 when viewed from the front, with the front-rear direction or the width direction being the front direction. Hereinafter, the side surface portion when viewed from the front in the front-rear direction will be referred to as the first side surface portion 21, and the side surface portion when viewed from the front in the width direction will be referred to as the second side surface portion 22.

[0032] The first side surface portions 21 located on both sides in the front-to-rear direction are configured symmetrically with respect to each other between the front side and the rear side, and each first side surface portion 21 has four equilateral triangular surfaces 23 that are congruent in shape, as shown in Figures 4 and 5. In each first side surface portion 21, the four equilateral triangular surfaces 23 are arranged in such a way that a quadrangle with four equal sides, consisting of one side of each of the four equilateral triangular surfaces 23, appears on the first side surface portion 21. This quadrangle is a square R with two diagonals extending along the height direction and width direction in a front view, and more specifically, corresponds to the opening 12 described above.

[0033] As described above, in first side portion 21, each of four equilateral triangular faces 23 shares one side with square R, in other words, one side of each of four equilateral triangular faces 23 forms the four sides that are the outer edges of square opening 12. This results in first side portion 21 being symmetrical in the height and width directions (more specifically, being symmetrical with respect to the center line of main body 14 in each direction).

[0034] The second side surface portions 22 located on both sides in the width direction are symmetrical to each other between the left side (one end side) and the right side (the other end side), and each second side surface portion 22 has four equilateral triangular faces 23 that are congruent in shape, as shown in FIG. 6. In each second side surface portion 22, the four equilateral triangular faces 23 are arranged such that a quadrangle with four equal sides, each consisting of one side of the four equilateral triangular faces 23, appears on the second side surface portion 22. This quadrangle is a square R in front view, with two diagonals extending along the height and width directions. As shown in FIG. 6, an isosceles triangular face 24 protrudes outward from each of the four sides of this square R. The four isosceles triangular faces 24 are congruent to each other, and their vertices converge at a single point.

[0035] As described above, in the second side surface portion 22, each of the four equilateral triangular surfaces 23 shares one side with the square R, in other words, one side of each of the four equilateral triangular surfaces 23 forms the four sides that are the outer edge of the square R. Furthermore, inside the square R, four isosceles triangular surfaces 24 that are congruent in shape are arranged with a common vertex. This makes the second side surface portion 22 symmetrical in the height direction and the front-to-rear direction (more specifically, linearly symmetrical with respect to the center line of the main body portion 14 in each direction).

[0036] In this embodiment, the equilateral triangular faces 23 included in the first side face portion 21 are shared as equilateral triangular faces 23 included in the second side face portion 22. Specifically, for example, of the four equilateral triangular faces 23 included in each of the front and rear first side face portions 21, two faces (four faces in total) located on one end side (left side) in the width direction are shared as the four equilateral triangular faces 23 included in the second side face portion 22 on one end side in the width direction. Similarly, of the four equilateral triangular faces 23 included in each of the front and rear first side face portions 21, two faces (four faces in total) located on the other end side (right side) in the width direction are shared as the four equilateral triangular faces 23 included in the second side face portion 22 on the other end side in the width direction.

[0037] Furthermore, the upper surface 25 of the main body 14 when the connected structure 10 is viewed from directly above and the lower surface 26 of the main body 14 when the connected structure 10 is viewed from directly below are symmetrical to each other, and as shown in FIGS. 7 and 8 , each has four equilateral triangular faces 23 that are congruent in shape. In each of the upper surface 25 and the lower surface 26, the four equilateral triangular faces 23 are arranged such that a quadrangle with four equal sides, consisting of one side of each of the four equilateral triangular faces 23, appears on the upper surface 25 / lower surface 26. This quadrangle is a square R with two diagonals extending along the front-to-rear and width directions, and is more specifically an opening. In other words, a quadrangular opening with four equal sides is provided at the lower end of the main body 14 (i.e., the lower end of the connected structure 10) and the upper end of the main body 14. In the following description, the opening provided at the bottom end of the main body 14 will be referred to as a bottom opening 18.

[0038] As described above, on the upper surface 25 and the lower surface 26 of the main body 14, each of the four equilateral triangular surfaces 23 shares one side with the above-mentioned square R. In other words, one side of each of the four equilateral triangular surfaces 23 forms the four sides that are the outer edges of the square-shaped opening. This results in the upper surface 25 and the lower surface 26 each having a symmetrical configuration in the front-to-rear direction and the width direction (more specifically, a configuration that is line-symmetrical with respect to the center line of the main body 14 in each direction).

[0039] Furthermore, by providing the bottom opening 18 on the underside 26 of the main body 14, the bottom side 26 is less likely to become dirty or damaged, and repairs or maintenance due to dirt, damage, etc. are not required, making the connected structure 10 easier to manage. Furthermore, electrical wiring and ventilation paths can be drawn into the connected structure 10 through the bottom opening 18, making it possible to use electrical equipment, ventilation devices, etc. within the connected structure 10. Furthermore, by providing the bottom opening 18, the connected structure 10 can be placed on top of equipment (e.g., a toilet) installed above or underground, allowing the equipment to be used inside the connected structure 10 (inside the hollow portion S).

[0040] In the present embodiment, the equilateral triangular faces 23 included in the first side face portion 21 are shared as the equilateral triangular faces 23 included in the upper face portion 25 and the lower face portion 26. To be more specific, for example, of the four equilateral triangular faces 23 included in each of the front and rear first side face portions 21, the two faces located on the upper side in the height direction (a total of four faces) are shared as the four equilateral triangular faces 23 included in the upper face portion 25. Similarly, of the four equilateral triangular faces 23 included in each of the front and rear first side face portions 21, the two faces located on the lower side in the height direction (a total of four faces) are shared as the four equilateral triangular faces 23 included in the lower face portion 26.

[0041] Furthermore, the upper ends of the two first side surface portions 21 and the upper ends of the two second side surface portions 22 all correspond to the upper end of the main body portion 14. In other words, when the connected structure 10 is viewed from directly above, the upper edge of one first side surface portion 21 and the upper edge of the other first side surface portion 21 form the outer edge of a quadrangle (strictly speaking, a square R) with equal sides that appears on the upper surface portion 25. Similarly, the upper edge of one second side surface portion 22 and the upper edge of the other second side surface portion 22 form the outer edge of the above-mentioned quadrangle (square R).

[0042] Furthermore, the lower ends of the two first side surface portions 21 and the lower ends of the two second side surface portions 22 all correspond to the lower end of the main body portion 14. In other words, when the connected structure 10 is viewed from directly below, the lower edge of one first side surface portion 21 and the lower edge of the other first side surface portion 21 form the outer edge of a quadrangle (strictly speaking, a square R) with equal sides that appears on the underside portion 26. Similarly, the lower edge of one second side surface portion 22 and the lower edge of the other second side surface portion 22 form the outer edge of the above-mentioned quadrangle (square R).

[0043] 4, 5, 7, 8, and 10, each of the two first side surface portions 21 has an extending portion 27 extending outward in the front-to-rear direction. That is, the extending portion 27 provided on the front first side surface portion 21 extends forward, and the extending portion 27 provided on the rear first side surface portion 21 extends rearward.

[0044] The extension portions 27 are flap-shaped fragments that extend from each side of the outer edge of the opening 12, i.e., from each of the four sides of the rectangle (specifically, square R) that appears on the first side surface portion 21. That is, each first side surface portion 21 has four extension portions 27 arranged along the outer edge of the opening 12, and the opening 12 is surrounded by the four extension portions 27. The four extension portions 27 are separated from one another; in other words, a gap c is formed between two adjacent extension portions 27, as shown in FIG. 10 . This allows each extension portion 27 to rotate around each side of the outer edge of the opening 12, which is its base end. This configuration facilitates connection of the connection structure 10 to the dome-side opening 116 and improves connection accuracy.

[0045] 10, each of the two first side surface portions 21 includes a folded portion 28 that is continuous with the tip of the extending portion 27 and is folded back inward in the front-to-rear direction. That is, the folded portion 28 included in the front first side surface portion 21 is folded back toward the rear, and the folded portion 28 included in the rear first side surface portion 21 is folded back toward the front.

[0046] In each first side surface portion 21, a folded portion 28 is provided for each extending portion 27. In other words, each first side surface portion 21 has the same number of folded portions 28 as the extending portions 27, i.e., four folded portions 28. The four folded portions 28 are arranged along the outer edge of the opening 12 so as to surround the opening 12. Each folded portion 28 is rotatable around the boundary between the folded portion 28 and the extending portion 27, i.e., the tip of the extending portion 27. In this embodiment, as described above, the four extending portions 27 are separated from one another and slits c are formed between the extending portions 27. Therefore, the four folded portions 28 are also separated from one another and slits e are formed between two adjacent folded portions 28. This allows each folded portion 28 to rotate so as to be easily folded back. In particular, each folded portion 28 is elastically engaged with the edge of the dome side opening 116 when folded outward, making it easier to connect the connecting structure 10 to the dome side opening 116 and further improving the connection accuracy.

[0047] 11 , when connecting the connecting structure 10 to the dome-shaped structure 110, the four extending portions 27 and the four folded portions 28 provided on the first side surface portion 21 facing the dome-side opening 116 are inserted into the dome-side opening 116. When the extending portions 27 and the folded portions 28 are inserted into the dome-side opening 116, the folded portions 28 are engaged with the edge region of the dome-side opening 116 on the inner wall surface of the dome-shaped structure 110. This makes it difficult for the extending portions 27 and the folded portions 28 to come out of the dome-side opening 116, and the connection state between the connecting structure 10 and the dome-shaped structure 110 can be maintained in a good condition. Furthermore, even if there is some error in the dimensions of the dome-side opening 116, the elasticity of the folded portions 28 can tolerate this error, making it even easier to connect the connecting structure 10 to the dome-shaped structure 110.

[0048] On the other hand, if gaps are formed between the extension portions 27 and between the folded-back portions 28, the strength of the main body portion 14 will be reduced compared to when no gaps are formed, and there is a risk that the main body portion 14 will tear at the gaps. For this reason, in this embodiment, as shown in Figures 4, 6, 7, and 8, mounting pieces 30 are provided as reinforcing components. The mounting pieces 30 are attached to each of the two adjacent folded-back portions 28, straddling the two adjacent folded-back portions 28.

[0049] As shown in FIGS. 12A and 12B , the attachment piece 30 is symmetrical about the center line, and each of the two symmetrical portions is an arrow feather-shaped sheet portion 31. The attachment piece 30 is positioned so that the center line faces the gap between the folded-back portions 28, and each sheet portion 31 is attached in a state where it is folded in half. Specifically, as shown in FIG. 13A , one sheet portion 31 sandwiches one of the two adjacent folded-back portions 28, and the other sheet portion 31 sandwiches the other folded-back portion 28. More specifically, as shown in FIGS. 13A and 13B , approximately half of the folded-back sheet portion 31 is inserted between the extending portion 27 and the folded-back portion 28, and the remaining half is adjacent to the folded-back portion 28 on the outside of the folded-back portion 28.

[0050] 13A, a plurality of insertion protrusions 32 are provided on the outer edge of the portion of sheet portion 31 that is adjacent to folded portion 28 on the outside of folded portion 28. These insertion protrusions 32 are inserted into insertion holes 29 formed at the boundary between extension portion 27 and folded portion 28, whereby attachment piece 30 is attached to folded portion 28.

[0051] In this embodiment, each first side surface portion 21 has four pairs of adjacent folded portions 28, and the attachment pieces 30 are attached to all four pairs. That is, each first side surface portion 21 is provided with four attachment pieces 30. In this embodiment, two types of attachment pieces 30 shown in FIGS. 12A and 12B are used, and the size (width) of the sheet portion 31 differs depending on the type. As described above, each first side surface portion 21 is provided with four attachment pieces 30, but from the perspective of balance, it is preferable that two of the four attachment pieces 30 located at opposing positions be the same type of attachment pieces 30.

[0052] As described above, by attaching the mounting piece 30 across two adjacent folded portions 28, it is possible to prevent a decrease in strength due to the gap between the folded portions 28 and also to prevent flapping due to the folded shape of the folded portions 28. This makes the folded shapes of the folded portions 28 approximately the same, which makes it easier to connect the connecting structure 10 to the dome-side opening 116 and further improves the connection accuracy.

[0053] Furthermore, when the insertion protrusion 32 is inserted into the insertion hole 29 with the folded sheet portion 31 sandwiching the folded-back portion 28, as shown in FIG. 13B , a moment (indicated by an arrow in the figure) acts to rotate the folded-back portion 28 around the position where the insertion hole 29 is formed as a fulcrum. This moment causes the folded-back portion 28 to rotate inward (away from the extending portion 27). This allows the two adjacent folded-back portions 28 to approach each other and come into contact with each other. Accordingly, the two adjacent extending portions 27 also approach each other. As a result, when the connected structure 10 is installed, the forces due to the weights of the folded-back portions 28 and the extending portion 27 are canceled out at the contact points. This improves the self-sustainability (stability of the posture after assembly) of the first side surface portion 21 compared to a state in which the two adjacent folded-back portions 28 are open outward (toward the extending portion 27) without abutting each other.

[0054] In this embodiment, in order to preferably generate the moment force, as shown in FIGS. 12A and 12B , a contact protrusion 33 protrudes from the end of each sheet portion 31 of the attachment piece 30 opposite the end where the insertion protrusion 32 is provided. When the folded sheet portion 31 is sandwiched between the folded portion 28, the contact protrusion 33 abuts against the pivot point of the folded portion 28 from the inside of the folded portion 28 (see FIG. 13B ). In other words, the distance from the folding position of the sheet portion 31 to the tip of the contact protrusion 33 (indicated by the symbol t in FIGS. 12A and 12B ) may be equal to or less than the width of the folded portion 28. However, in order for the attachment piece 30 to securely hold the folded portion 28, it is preferable that the distance be approximately equal to the width of the folded portion 28. Note that the width of the folded portion 28 is the length of the folded portion 28 in a direction intersecting the boundary between the folded portion 28 and the extending portion 27.

[0055] (top) The top portion 16 is a cone-shaped portion located at the upper end of the connected structure 10, and is formed by combining multiple panels. As shown in Fig. 4, the top portion 16 is placed on the upper ends of the first side surface portions 21 located on both sides in the front-to-rear direction, in other words, on the upper ends of the second side surface portions 22 located on both sides in the width direction.

[0056] By providing the top portion 16, the interior of the connected structure 10, i.e., the hollow portion S, is expanded in the height direction. This makes it possible to increase the storage space within the connected structure 10. Also, for example, when a person moves forward and backward within the hollow portion S, they do not need to bend their body, or the degree to which they have to bend can be reduced, making it easier for them to move within the hollow portion S.

[0057] In this embodiment, the apex portion 16 has a quadrangular pyramid shape as shown in FIGS. 4 and 7 and has four side surfaces (hereinafter referred to as apex side surfaces 35). Each of the four apex side surfaces 35 has an isosceles triangle shape, and the base of each apex side surface 35 forms the lower edge of the apex portion 16. Specifically, as shown in FIG. 7, the bases of the four apex side surfaces 35 form the outer edge of a quadrangle with equal sides, more specifically, a square R. This square R is congruent with the square R formed by the upper opening of the main body portion 14. In other words, when the apex portion 16 is placed on the main body portion 14, the lower end of the apex portion 16 coincides with the upper end of the main body portion 14 as shown in FIG. 4.

[0058] As shown in FIG. 9 , a rib 36 protrudes from the inner wall surface of the top portion 16 toward the inside of the top portion 16. The rib 36 is formed by connecting the side joint pieces 73 of the two panels (more specifically, the top panel 53) that make up the top portion 16 when they are combined. In this embodiment, the rib 36, i.e., the connected side joint pieces 73, extend in the width direction as shown in FIG. 9 and in a direction that intersects (more specifically, is perpendicular to) the front-to-rear direction, which is the direction of movement when passing through the connected structure 10. Because the extension direction of the rib 36 intersects the front-to-rear direction in this manner, when moving in the front-to-rear direction within the connected structure 10, the vehicle passes under the rib 36 only when passing directly below the apex of the top portion 16, thereby minimizing the effect of the rib 36 on movement within the connected structure 10. This minimizes the reduction in space required for movement within the connected structure 10.

[0059] [Partition section] In this embodiment, as shown in Fig. 11, a partition section 40 can be used as an accessory to the connected structure 10. The use and configuration of the partition section 40 will be described below with reference to Figs. 11 and 14-15.

[0060] The partition 40 is used to block the opening 12 in the connected structure 10, and in this embodiment, as shown in Fig. 14, is configured by arranging an upper portion 41 having a substantially triangular prism shape and a lower portion 42 having a shape that is vertically symmetrical to the upper portion 41, one above the other. However, this is not limited to this, and the partition 40 may be configured by either the upper portion 41 or the lower portion 42. In this case, as long as the height of the partition 40 is such that it can block up to half of the opening 12 in the vertical direction, it is possible to achieve both ventilation through the opening 12 and heat retention within the connected structure 10.

[0061] The partition member 40 has an isosceles trapezoidal shape in a plan view (see FIG. 11 ) and a triangular shape in a side view (see FIG. 15 ). As shown in FIGS. 14 and 15 , the partition member 40 has a front surface 43 that is inclined in the height direction and a back surface 44 that is perpendicular to the ground. The front surface 43 is the surface facing the outside of the connected structure 10, and the back surface 44 is the surface on the opposite side. As shown in FIG. 11 , the width (length in the width direction) of the back surface 44 is wider than the width of the front surface 43. In other words, the partition member 40 has a tapered shape in which the width increases toward the back surface 44 in a plan view. The width of the partition member 40 (strictly speaking, the width of the back surface 44) is wider than the width of the opening 12, and more specifically, shorter than the length of the diagonal extending in the width direction of the square formed by the opening 12.

[0062] As shown in Figures 11 and 15, the partition unit 40 configured as described above is disposed near the opening 12 within the connected structure 10, with the front surface 43 or the back surface 44 of the partition unit 40 facing the opening 12. In this case, the partition unit 40 placed within the connected structure 10 may be disposed close to the opening 12. In this case, by bringing the end of the partition unit 40 into contact with the edge region of the opening 12 on the inner wall surface of the connected structure 10, the partition unit 40 can block outside air flowing into the connected structure 10 through the opening 12. This allows the cavity S within the connected structure 10 to be kept warm. Furthermore, the condition of the cavity S is made difficult to see (shielded) from outside the connected structure 10, thereby protecting the privacy of people inside the cavity S.

[0063] Alternatively, the partition 40 may be pushed into the connected structure 10 from outside the connected structure 10 through the opening 12. In this case, it is possible to block outside air and shield the situation in the cavity S, and by pushing the partition 40 from the rear surface 44 side, it can be pushed out of the connected structure 10 and the opening 12 can be opened. This makes it possible to secure a route for evacuation to the outside of the connected structure 10 through the opening 12 in the event of an emergency. When the partition portion 40 is pushed into the connected structure 10 from the outside of the connected structure 10, the partition portion 40 is brought close to the opening 12 from the rear surface 44 side.

[0064] In this embodiment, the surface 43 of the partition section 40 facing the outside of the connecting structure 10 is an inclined surface, so even if floating matter in the outside air adheres to the surface 43, the adhered matter can be discharged to the outside of the connecting structure 10.

[0065] [About the panels that make up the connected structure] Next, the panels that make up the connected structure 10 will be described. Each of the main body 14 and top portion 16 of the interconnected structure 10 is constructed by combining multiple panels. In this embodiment, each panel is made of cardboard and has a laminated structure in which a corrugated paper core is sandwiched between two sheets of flat paper (liners). The cardboard that makes up the panels may be of any quality, and the surface of the paper may be coated with various types of coatings.

[0066] The main body 14 is formed by combining eight panels, with four of the eight panels forming one first side surface portion 21 and the remaining four forming the other first side surface portion 21. The main body 14 is assembled by joining two first side surface portions 21. In this embodiment, two second side surface portions 22 are assembled by joining the first side surface portions 21 together, and the top surface portion 25 and bottom surface portion 26 of the main body 14 are also assembled. Each of the two second side surface portions 22 and each of the top surface portion 25 and bottom surface portion 26 of the main body 14 are each formed by four panels.

[0067] The four panels constituting each first side surface portion 21 include two first main body panels 51 shown in Fig. 16 and two second main body panels 52 shown in Fig. 17. As shown in Figs. 16 and 17, the first main body panels 51 and the second main body panels 52 are mirror images of each other. In addition, the four panels that constitute each second side portion 22, and the four panels that constitute each of the upper surface portion 25 and lower surface portion 26 of the main body portion 14, include two first main body portion panels 51 and two second main body portion panels 52, similar to the first side portion 21.

[0068] As described above, the eight panels that make up the main body 14 have shapes that are congruent or mirror-image, making it easy to handle and manage the panels (including storage). Furthermore, when combining the panels, because the panel shapes are congruent or mirror-image, the same process can be repeated, making it easy to assemble the main body 14.

[0069] The top portion 16 is formed by combining two top panels 53 shown in Figure 18. The two top panels 53 are congruent with each other. Because the two panels that make up the top portion 16 are congruent in this way, handling and management of the panels are easy, and the top portion 16 can be easily assembled.

[0070] Next, we will explain the planar shapes of the panels that make up the main body 14 and the panels that make up the top portion 16. Here, the planar shape of the panel means the external shape of the panel alone when viewed from directly above in an unfolded state, and is different from the shape of the panel when viewed in an assembled state of the main body 14 or top portion 16.

[0071] (First body panel and second body panel) As shown in FIG. 16 , the first main body panel 51 has an isosceles triangular first portion 54, an equilateral triangular second portion 55, a substantially trapezoidal third portion 56, and a rectangular fourth portion 57. The first portion 54 forms an isosceles triangular surface 24 when the main body 14 is assembled. The second portion 55 is continuous with the first portion 54 and shares one side with the base of the isosceles triangle formed by the first portion 54, thereby forming an equilateral triangular surface 23 when the main body 14 is assembled. Also, as shown in FIG. 16 , a first folding line L1 is formed at the boundary between the first portion 54 and the second portion 55, i.e., at the location corresponding to the shared side.

[0072] The third portion 56 is continuous with the second portion 55 via one side of the equilateral triangle formed by the second portion 55, and forms the extension portion 27 when the main body portion 14 is assembled. As shown in Fig. 16, a second bending line L2 is formed at the boundary between the second portion 55 and the third portion 56. The first bending line L1 and the second bending line L2 correspond to the "bending line" in this invention.

[0073] The fourth portion 57 is continuous with the third portion 56 on the opposite side to the second portion 55, and forms the folded portion 28 when the main body 14 is assembled. As shown in Fig. 16, a third folding line L3 is formed at the boundary between the third portion 56 and the fourth portion 57. A plurality of notches forming the aforementioned insertion holes 29 are provided at regular intervals on the third folding line L3.

[0074] The first folding line L1, the second folding line L2, and the third folding line L3 are each formed so as to intersect with the extension direction of the grain d, which is a corrugated paper grain formed in the core of the laminated cardboard structure that constitutes the first body panel 51. The extension direction of the grain d is the direction in which the peaks and valleys of the core included in the cardboard continue, and is the extension direction of the straight line shown inside the dashed circle in FIG. 16. Because each folding line intersects with the extension direction of the grain d, when the first body panel 51 is folded at each folding line, an appropriate restoring force is generated, and the first body panel 51 can be folded along each folding line. In addition, the third folding line L3 has multiple notches that form insertion holes 29, allowing the insertion protrusions 32 of the mounting pieces 30 to be inserted into the insertion holes 29.

[0075] The first joint piece 58 is a rectangular piece extending from one of the two sides of the outer edge of the first portion 54 other than the side shared with the second portion 55. The second joint piece 59 is a triangular piece extending from the other of the two sides of the outer edge of the first portion 54 other than the side shared with the second portion 55. The third joint piece 60 is a triangular piece extending from one of the three sides of the equilateral triangle formed by the second portion 55, the other side being at a position different from the first bending line L1 and the second bending line L2.

[0076] Each of the first joining piece 58, the second joining piece 59, and the third joining piece 60 can be folded along a fourth folding line L4 formed at the base end position of the respective joining piece. Furthermore, as shown in FIG. 16, each joining piece is provided with a first pressing portion 61, an alignment hole 62, and a fastening hole 63. The first pressing portion 61 is a portion that is pressed in when joining the first body panel 51 and the second body panel 52, and extends from the base end, with the width of the tip portion being longer than the width of the remaining portion (base end). Furthermore, the first pressing portion 61 is defined by perforations formed along the outer edge of the first pressing portion 61 excluding the base end, and can be folded at the base end.

[0077] The alignment hole 62 is a hole for aligning the panel positions when joining the first body panel 51 and the second body panel 52, and is provided at the tip of the first push-in portion 61. The fastening hole 63 is a hole for fastening the joining pieces together through a fastener such as an insulation lock when joining the first body panel 51 and the second body panel 52, and is provided, for example, at the end of each joining piece in the extension direction.

[0078] 17, the second body panel 52 has a similar configuration to the first body panel 51, except that it includes a second push-in portion 64 instead of the first push-in portion 61. The second push-in portion 64 is a portion that is pushed in together with the second push-in portion 64 while overlapping the first push-in portion 61 when the first body panel 51 and the second body panel 52 are joined, and extends from the base end and has a generally rectangular shape. The second push-in portion 64 is defined by perforations formed along the outer edge of the second body panel 52 excluding the base end, and is foldable at the base end.

[0079] In this embodiment, two of the first main body panels 51 and two of the second main body panels 52 are used, making a total of four panels to form the first side surface portion 21, and similarly, four panels to form the second side surface portion 22. In addition, each of the upper surface portion 25 and the lower surface portion 26 is also made up of the four panels. In this embodiment, the first portion 54, the second portion 55, the third portion 56, and the fourth portion 57 of each of the four panels are congruent between the panels. Also, the lengths of the first folding line L1, the second folding line L2, and the third folding line L3 formed in each of the four panels are equal between the panels.

[0080] (Top panel) 18, the top panel 53 has two main surface portions 71, and a lower joining piece 72 and a side joining piece 73 extending from the outer edge of each main surface portion 71. The main surface portion 71 is an isosceles polygonal portion, and forms the top side surface 35 when the top portion 16 is assembled. The two main surface portions 71 are continuous so as to share one side other than the base, and a fifth folding line L5 is formed at the boundary between the main surface portions 71, i.e., at the location corresponding to the shared side.

[0081] The lower joining piece 72 is a triangular piece extending from the base of the outer edge of the isosceles triangle-shaped main surface portion 71. The lower joining piece 72 extending from one of the two main surface portions 71 is provided with a first pressed-in portion 61, an alignment hole 62, and a fastening hole 63, as shown in Figure 18. The lower joining piece 72 extending from the other main surface portion 71 is provided with a second pressed-in portion 64, an alignment hole 62, and a fastening hole 63, as shown in Figure 18.

[0082] The side joint pieces 73 are rectangular pieces extending from the outer edges of the isosceles triangle main surface portions 71, except for the base. The side joint piece 73 extending from one of the two main surface portions 71 is provided with a first press-in portion 61, an alignment hole 62, and a fastening hole 63, as shown in Figure 18. The side joint piece 73 extending from the other main surface portion 71 is provided with a second press-in portion 64, an alignment hole 62, and a fastening hole 63, as shown in Figure 18.

[0083] Each of the lower joint piece 72 and the side joint piece 73 can be bent at a sixth bending line L6 formed at the base end position of each.

[0084] In this embodiment, the top portion 16 is formed by combining two top panels 53. The two main surface portions 71 of each of the two top panels 53, i.e., the total of four main surface portions 71, are congruent with each other.

[0085] [Assembly procedure for the connected structure] Next, the procedure for assembling the connection structure 10 will be described with reference to FIGS.

[0086] First, four panels consisting of two first body panels 51 and two second body panels 52 are prepared. As shown in the leftmost drawing in the top row of FIG. 19 , each panel is folded in a mountain fold along the first folding line L1 at an obtuse angle. Then, each panel is folded in a valley fold along the second folding line L2 so that the third portion 56 extends in a direction intersecting with the second portion 55. Then, each panel is folded in a mountain fold along the third folding line L3 so that the fourth portion 57 is folded back toward the third portion 56. Finally, each of the first joining piece 58, the second joining piece 59, and the third joining piece 60 provided on each panel is folded along the fourth folding line L4. As a result, each of the first body panel 51 and the second body panel 52 becomes a panel as shown in the second drawing from the left in the top row of FIG. 19 .

[0087] Next, the first body panel 51 and the second body panel 52 folded in the above manner are arranged side by side as shown in the third diagram from the left in the top row of FIG. 19. Then, as shown in the fourth diagram from the left in the top row of FIG. 19, the attachment piece 30 is attached to the fourth portion 57 (i.e., the folded-back portion 28) of each panel. Specifically, the two sheet portions 31 of the attachment piece 30 are each folded in half, and the fourth portion 57 of the first body panel 51 is sandwiched between one of the sheet portions 31. The fourth portion 57 of the second body panel 52 is also sandwiched between the other sheet portion 31. Then, the insertion protrusions 32 provided on the outer edges of each sheet portion 31 are inserted into the notched insertion holes 29 formed at the boundary between the fourth portion 57 and the third portion 56 (i.e., the third folding line L3). In this manner, the mounting piece 30 is attached across the fourth portion 57 of each of the first main body panel 51 and the second main body panel 52. This connects the first main body panel 51 and the second main body panel 52, which are arranged side by side.

[0088] By repeating the above steps, two sets of panel assemblies 50 are created, each consisting of a first main body panel 51 and a second main body panel 52, as shown in the rightmost diagram in the upper row of Figure 19. Then, as shown in the same figure, the two sets of panel assemblies 50 are lined up one above the other and joined together.

[0089] When joining panel assemblies 50 together, the second joint piece 59 of the first body panel 51 included in one panel assembly 50 and the second joint piece 59 of the second body panel 52 included in the other panel assembly 50 are overlapped so that their outer edges match. At this time, by overlapping the second joint pieces 59 so that the alignment holes 62 provided in each second joint piece 59 align, each second joint piece 59 is correctly positioned and one second joint piece 59 properly faces the other second joint piece 59.

[0090] Then, with the second joint pieces 59 overlapping each other, the first push-in portion 61 on one of the second joint pieces 59 is pushed toward the other second joint piece 59. As a result, as shown in FIG. 20 , the first push-in portion 61 bends together with the second push-in portion 64 and enters the hole formed by the second push-in portion 64 being pushed aside. When the first push-in portion 61 is completely inserted into the hole, the tip of the first push-in portion 61 engages with the edge of the hole, as shown in FIG. 20 . By performing this pushing operation of the first joint piece 58 on all of the multiple first push-in portions 61 on the second joint pieces 59, the second joint pieces 59 are joined together. In this way, two panel assemblies 50 arranged vertically are joined together.

[0091] As described above, in this embodiment, the second joining pieces 59 can be easily connected to each other by overlapping the second joining pieces 59 and pressing the first pushing portion 61 and the second pushing portion 64. Note that in order to connect the second joining pieces 59 to each other more firmly, a fastener such as an insulation lock may be passed through the fastening holes 63 provided in each second joining piece 59 and the second joining pieces 59 may be fastened to each other by the fastener.

[0092] After connecting the two panel assemblies 50 using the above procedure, as shown in the rightmost drawing in the bottom row of Figure 19, the mounting piece 30 is attached to the fourth portion 57 (i.e., the folded portion 28) of each panel included in each panel assembly 50. More specifically, in the same manner as above, the mounting piece 30 is attached so as to straddle two vertically adjacent fourth portions 57.

[0093] One first side surface portion 21 is created by the above procedure, and the same procedure is repeated to create another first side surface portion 21. Then, as shown in the second drawing from the right in the bottom row of Fig. 19, the two created first side surface portions 21 are lined up front and back and joined together.

[0094] When joining the first side surface portions 21 together, the first joint piece 58 of the first main body panel 51 included in the front first side surface portion 21 and the first joint piece 58 of the second main body panel 52 included in the rear first side surface portion 21 are overlapped so that their outer edges coincide. Similarly, the first joint piece 58 of the first main body panel 51 included in the rear first side surface portion 21 and the first joint piece 58 of the second main body panel 52 included in the front first side surface portion 21 are overlapped so that their outer edges coincide. At this time, by overlapping the first joint pieces 58 so that the alignment holes 62 provided in each first joint piece 58 align, each first joint piece 58 is correctly positioned and one first joint piece 58 properly faces the other first joint piece 58.

[0095] Then, with the first joint pieces 58 overlapping each other, the first push-in portion 61 provided on one of the first joint pieces 58 is pushed toward the other first joint piece 58. As a result, in the same manner as above, the first joint pieces 58 are connected to each other and joined to the first side surface portion 21. Note that in order to connect the first joint pieces 58 to each other more firmly, a fastener such as an insulation lock may be passed through the fastening holes 63 provided in each first joint piece 58 and the first joint pieces 58 may be fastened to each other by the fastener.

[0096] When the series of operations described so far are completed, the main body 14 is completed as shown in the leftmost drawing in the lower part of Figure 19. In the completed main body 14, in each of the first side surface portions 21 provided on both sides in the front-to-rear direction, the four panels (two first main body panels 51 and two second main body panels 52) that make up the first side surface portion 21 are combined in a state where a rectangle with the second folding lines L2 of each panel as its four sides appears on the first side surface portion 21. This rectangle has four equal sides, and more specifically, is a square R when viewed from the front.

[0097] In each of the second side surface portions 22 provided on both sides in the width direction, the four panels (two first main body panels 51 and two second main body panels 52) that make up the second side surface portion 22 are combined in a state where a quadrangle with the first folding line L1 of each panel as its four sides appears on the second side surface portion 22. This quadrangle has four equal sides, and more specifically, is a square R when viewed from the front.

[0098] After the main body 14 is completed, the top portion 16 is assembled onto the main body 14. Specifically, two top panels 53 are prepared, and as shown in FIG. 19, each top panel 53 is folded in a mountain fold along the fifth folding line L5. At this time, the top panel 53 is folded so that the folding angle when viewed from directly above is approximately 90 degrees. In addition, each of the lower joining pieces 72 and the side joining pieces 73 provided on each top panel 53 is folded along the sixth folding line L6.

[0099] Thereafter, one top panel 53 folded in the above manner is placed directly above each of the two first side surface portions 21 of the main body 14, and the first side surface portion 21 and the top panel 53 are joined together. Specifically, the third joint piece 60 placed at the upper end of the first side surface portion 21 and the lower joint piece 72 of the top panel 53 are overlapped so that their outer edges coincide. At this time, the joint pieces are overlapped so that the alignment holes 62 provided in the third joint piece 60 and the lower joint piece 72 align, thereby correctly positioning each joint piece and properly aligning the third joint piece 60 with the lower joint piece 72.

[0100] Thereafter, with the third joint piece 60 and the lower joint piece 72 overlapping each other, the first push-in portion 61 on one of the joint pieces is pushed into the other joint piece. This connects the third joint piece 60 and the lower joint piece 72 in the same manner as above, joining the first side surface portion 21 and the top panel 53. Note that in order to more firmly connect the third joint piece 60 and the lower joint piece 72 together, a fastener such as an insulation lock may be passed through the fastening holes 63 on each joint piece, and the third joint piece 60 and the lower joint piece 72 may be fastened together with the fastener.

[0101] Thereafter, the top panel 53 joined to the front first side surface portion 21 and the top panel 53 joined to the rear first side surface portion 21 are combined (more specifically, joined together). When combining the top panels 53, the side joint piece 73 provided on the front top panel 53 is overlapped with the side joint piece 73 provided on the rear top panel 53. At this time, by overlapping the side joint pieces 73 with each other so that the alignment holes 62 provided on each side joint piece 73 are aligned, each side joint piece 73 is correctly positioned and one first joint piece 58 properly faces the other first joint piece 58.

[0102] Then, with the side joint pieces 73 overlapping each other, the first push-in portion 61 on one of the side joint pieces 73 is pushed toward the other side joint piece 73. This connects the side joint pieces 73 together in the same manner as above, joining the top panels 53 together. Note that in order to connect the side joint pieces 73 together more firmly, a fastener such as an insulation lock may be passed through the fastening holes 63 on each side joint piece 73 and the side joint pieces 73 may be fastened together using the fastener.

[0103] When the top panels 53 are combined according to the above procedure, the top portion 16 is completed, and is then placed on top of the main body portion 14 and assembled to the main body portion 14. From the inner wall surface of the completed top portion 16, ribs 36 formed by connecting the side joint pieces 73 protrude toward the inside of the hollow portion S (see Figure 9). In this embodiment, since the side joint pieces 73 are joined in a line in the front-to-rear direction, the ribs 36 necessarily extend in the width direction, but not in the front-to-rear direction.

[0104] Then, when the series of operations described above is completed, the connected structure 10 is completed. In this embodiment, as described above, the connected structure 10 can be assembled by combining multiple panels, making it easier to create and install the connected structure 10.

[0105] On the other hand, if the connected structure 10 is divided into multiple panels, the strength of the connected structure 10 may be reduced compared to when the connected structure 10 is composed of a single part. In contrast, in this embodiment, the panels are joined by connecting the joining pieces provided on each panel. This allows the connected joining pieces to function as reinforcing ribs, preventing a decrease in strength. In this way, the connected structure 10 according to this embodiment is both easy to assemble and strong.

[0106] [Other embodiments] Although the assembly structure of the present invention has been described above using specific examples, the above-described embodiment is merely an example, and other embodiments may be considered.

[0107] In the above embodiment, as an example of the assembled structure of the present invention, the connected structure 10 that is placed between the dome-shaped structures 110 to connect the dome-shaped structures 110 and form a communication passage between the dome-shaped structures 110 has been described. However, the assembled structure of the present invention is not limited to the connected structure 10, and may be a structure that can be used independently, such as a dome-shaped tent.

[0108] In the above-described embodiment, the connection structure 10 has an opening 12 in the front-rear direction, and the hollow portion S in the connection structure 10 is passable in the front-rear direction, while both sides in the width direction are closed (closed ends). However, this is not limited to this, and the connection structure 10 may have a configuration in which the front-rear direction and width direction are reversed from those in the above-described embodiment.

[0109] In the above-described embodiment, a rectangle having four sides that are the folding lines (more specifically, the second folding lines L2) of the four panels that make up the first side surface portion 21 appears on each of the first side surface portions 21 on both sides in the front-rear direction. Also, in the above-described embodiment, a rectangle having four sides that are the folding lines (more specifically, the first folding lines L1) of the four panels that make up the second side surface portion 22 appears on each of the second side surface portions 22 on both sides in the width direction. However, this is not limited thereto, and a configuration may also be used in which a rectangle having four sides that are the folding lines (more specifically, the first folding lines L1 or the second folding lines L2) of the four panels that make up the side surface portion 21 appears on both side surface portions in either the front-rear direction or the width direction.

[0110] In the above-described embodiment, the quadrangles appearing on the first side surface portion 21 and the second side surface portion 22 are squares R in front view, and more specifically, are squares with one diagonal line along the vertical direction. However, the quadrangles appearing on each side surface portion may be any quadrangle with four equal sides, for example, a square with sides along the vertical direction, or a quadrangle other than a square, such as a rhombus.

[0111] In the above-described embodiment, an opening (lower end opening 18) is provided at the lower end of the connected structure 10, but this is not limited to this. The lower end of the connected structure 10 may be closed, and for example, the lower end of the connected structure 10, i.e., the bottom, may be formed of a detachable sheet. In this case, the bottom can be attached according to the condition of the ground on which the connected structure 10 is installed, making the use of the connected structure 10 more comfortable.

[0112] In the above embodiment, the connected structure 10 is described as having a configuration in which the cone-shaped top portion 16 is assembled to the upper end of the main body portion 14, but the present invention is not limited to this. The assembled structure of the present invention may have a structure in which the top end of the main body portion 14 is closed instead of having the top portion 16 (for example, a structure in which the opening at the top end of the main body portion 14 is closed by a flat plate or the like).

[0113] In the above-described embodiment, the number of panels constituting the main body 14 is eight, of which the number of panels constituting one side surface portion (specifically, each of the first side surface portion 21 and the second side surface portion 22) is four. However, this is not limited to this, and the number of panels constituting a side surface portion may be one or more. For example, each of the side sections on both sides in the front-rear or width direction may be constructed by folding in a single panel. In this case, each side section may have four congruent triangular faces (corresponding to the equilateral triangular faces 23 in the above-described embodiment), and the four triangular faces may be arranged so that a quadrangle with four equal sides appears on the side section, consisting of one side of each triangular face. This allows for a symmetrical and balanced assembled structure to be realized, even when each side section is constructed by folding in a single panel.

[0114] In the above-described embodiment, the number of panels constituting the top portion 16 is two. However, this is not limited to two, and any number greater than two, such as four, may be used. When the top portion 16 is formed by combining four panels, the rib 36 is formed by overlapping two of the joining pieces (corresponding to the side joining pieces 73 in the above-described embodiment) provided on each panel and connecting the joining pieces. In this case, two ribs 36 are formed extending in different directions. For example, one rib 36 extends in a direction intersecting the front-to-rear direction, and the other rib 36 is formed in a direction parallel to the front-to-rear direction. Here, if the length by which the rib 36 protrudes from the inner wall surface of the connected structure 10 is defined as the protrusion amount of the rib 36, from the viewpoint of ease of movement of people within the connected structure 10, it is preferable that the protrusion amount of the rib 36 along the front-to-rear direction be smaller than the protrusion amount of the rib 36 intersecting the front-to-rear direction.

[0115] In the above-described embodiment, the attachment piece 30 is attached across two adjacent folded portions 28 in order to reinforce the extending portion 27 and the folded portion 28. However, this is not limitative, and a configuration in which the attachment piece 30 is not attached may also be used.

[0116] In the above-described embodiment, when joining the joining pieces provided on each panel, the joining pieces are joined by pressing the first pressing portion 61 and the second pressing portion 64 provided on the joining pieces. However, the method of joining the joining pieces is not limited to this, and the joining pieces may be joined together using a fastener such as an insulation lock, or the joining pieces may be bonded together using an adhesive or the like. [Explanation of symbols]

[0117] 10 Connected structures (assembly structures) 12 aperture 14 Main body 16 Top 18 Bottom opening (opening) 21 First side part 22 Second side part 23 Equilateral triangular face (triangular face) 24 Isosceles triangular faces 25 Top part 26 Bottom part 27 Extension 28 Folded section 29 Insertion hole 30 Mounting piece 31 Seat section 32 Insertion protrusion 33 Contact protrusion 35 Top side 36 Ribs 40 Partition 41 Upper part 42 Lower part 43 Surface 44 Back side 50 Panel connection body 51 First body panel 52 Second body panel 53 Top Panel 54 Part 1 55 Part 2 56 Part 3 57 Part 4 58 1st joint piece 59 Second joint piece 60 Third joint piece 61 First pushing part 62 Alignment holes 63 Fastening holes 64 Second pushing part 71 Main surface section 72 Lower joint piece 73 Lateral joint piece (joint piece) 100 structural units 110 Dome-shaped structure 112 Dome bottom 114 Top of the Dome 116 Dome side opening c Break d Paper grain e Break K void L1 First bending line (bending line) L2 Second bending line (bending line) L3 Third bending line L4 Fourth bending line L5 5th bending line L6 6th bending line R square S cavity

Claims

1. An assembled structure having a cavity therein, each of the side surface portions on both sides in at least one direction of the front-rear direction of the assembled structure, which is perpendicular to the height direction of the assembled structure, and the width direction of the assembled structure, which is perpendicular to both the height direction and the front-rear direction, is formed by combining four panels; The lengths of the folding lines of each of the four panels are equal between the panels; An assembled structure in which, at each of the side portions, the four panels are combined in a state in which a rectangle having four sides defined by the folding lines of each of the four panels appears at the side portion.

2. 2. The assembled structure according to claim 1, wherein, when the assembled structure is viewed from directly above, the upper edge of one of the side surface portions in the at least one direction and the upper edge of the other of the side surface portions form the outer edge of a rectangle with four equal sides.

3. 3. The assembled structure according to claim 1, wherein, when the assembled structure is viewed from directly below, the lower edge of one of the side surface portions in at least one direction and the lower edge of the other of the side surface portions form the outer edge of a rectangle with four equal sides.

4. 4. The assembly structure according to claim 3, wherein a rectangular opening having four equal sides is provided at a lower end of the assembly structure.

5. Each of the first side surface portions provided on both sides in the front-rear direction is configured by combining four panels, The lengths of the folding lines of the four panels constituting the first side surface portion are equal among the panels, In each of the first side surface portions, the four panels constituting the first side surface portion are combined in a state where a rectangle having four sides defined by the folding lines of each of the four panels appears on the first side surface portion, Each of the second side surface portions provided on both sides in the width direction is configured by combining four panels, The lengths of the folding lines of the four panels constituting the second side surface portion are equal among the panels, 3. The assembly structure of claim 1, wherein in each of the second side portions, the four panels constituting the second side portion are combined in a state in which a rectangle having four sides defined by the folding lines of each of the four panels appears on the second side portion.

6. The first side surface portion is an extension portion formed by folding each of the four panels constituting the first side surface portion at the folding line and extending outward in the front-rear direction; The assembly structure according to claim 5 , further comprising: a folded portion that is continuous with a tip end portion of the extension portion and that is folded back toward the inside in the front-rear direction.

7. the first side surface portion includes four of the extending portions and four of the folded portions, The assembly structure according to claim 6 , further comprising an attachment piece attached to each of the two adjacent folded portions in a state spanning the two adjacent folded portions.

8. Each of the four panels constituting the respective side surface portions has a first portion having a planar shape of an isosceles triangle and a second portion that is continuous with the first portion via the folding line and has a planar shape of an equilateral triangle, the first portion of each of the four panels has a congruent shape between the panels; 3. The assembled structure according to claim 1, wherein the second portions of the four panels have the same shape.

9. a cone-shaped top portion disposed at an upper end of the assembly structure; the top portion is placed on the upper ends of the side portions on both sides in the at least one direction, 3. The assembled structure according to claim 1, wherein the lower edge of the top portion forms the outer edge of a rectangle with four equal sides.

10. the apex has four apex sides; 10. The assembled structure of claim 9, wherein each of the four top sides is an isosceles triangle in shape.

11. The top portion is formed by combining two or more panels, Each of the two or more panels constituting the top portion includes a joint piece, and the joint pieces are connected to each other when the two or more panels are combined; 10. The assembled structure according to claim 9, wherein, when the assembled structure is structured so that it can pass through the hollow portion along either the front-to-rear direction or the width direction, the connecting pieces in a connected state extend in a direction intersecting either one of the directions.

12. 3. The assembled structure according to claim 1 or 2, wherein each of the four panels is made of cardboard.

13. 7. The assembly structure according to claim 6, wherein the cavity communicates with the interior of the dome-shaped structure by inserting the extension and the folded-back portion into a dome-side opening provided in the dome-shaped structure.

14. An assembled structure having a cavity therein, each of the side surface portions on both sides in at least one direction of the front-rear direction of the assembled structure, which is perpendicular to the height direction of the assembled structure, and the width direction of the assembled structure, which is perpendicular to both the height direction and the front-rear direction, has four triangular faces that are congruent in shape; An assembled structure, wherein in each of the side portions, the four triangular faces are arranged in such a way that a quadrilateral with four equal sides consisting of one side of each of the four triangular faces appears on the side portion.

Images