JP2021020038A - Assembly toy - Google Patents

Abstract

To provide a block and an assembly toy for fixing a connection rod to the block, facilitating grasping a relation between a direction of each surface required for expressing a polyhedron and a length of the connection rod, and facilitating assembly.SOLUTION: An assembly toy comprises a block 10 having a three-dimensional shape and a plurality of connection parts 14 for fixing a connection rod 20, and the connection rod 20, in which: the connection parts 14 each face any one of directions of twenty-six surfaces composing an oblique cubic octahedron; surfaces around the connection parts 14 each form surfaces; a first surface 11, a second surface 12 and a third surface 13 each facing a different direction each have a different aspect; and the connection rod 20 has a first connection rod 23 fixed to the first surface 11, a second connection rod 24 fixed to the second surface 12, and a third connection rod 25 fixed to the third surface 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to an assembled toy capable of creating a three-dimensional shape such as a regular or semi-regular polyhedron by connecting a plurality of blocks formed in a three-dimensional shape with a connecting rod, and a block used therefor.

Some of the regular and semi-regular polyhedrons represent shapes that exist in nature, and the rationality and mystery of nature are hidden in them. These polyhedra represent the laws of nature and have been studied by crystallography and mathematics experts for many years. In addition, polyhedral enthusiasts are attracted to its mystery and mystery and are conducting their own research.

These studies are basically conducted by professional adults. It also utilizes advanced geometric knowledge to explain polyhedra and the geometrical relationships between polyhedra. For this reason, children such as elementary school students are less likely to be interested. However, since regular and semi-regular polyhedra have the mystery and fun of polyhedra, they originally drive the curiosity of children. Therefore, such a polyhedron is suitable as a teaching material for children to learn independently with interest.

Usually, a regular polyhedron or a semi-regular polyhedron is either represented by a surface on paper or by a point or a line. However, this makes it difficult to intuitively understand the three-dimensional shape. For this reason, the applicant of the present application expresses a polyhedron by a grid point and a line connecting the grid points. Therefore, an assembly that forms a three-dimensional shape by connecting a plurality of blocks with a grid point as a block and a line as a connecting rod with a connecting rod. I came up with a toy.

Conventionally, as a toy for playing by connecting a plurality of blocks with a connecting rod, there is one as listed in Patent Document 1. Further, as a device for connecting a plurality of blocks with a connecting rod, there is a molecular model as described in Patent Document 2.

Utility Model Registration No. 3185690 Design Registration No. 505963

Patent Document 1 connects blocks with connecting rods, but does not form a geometric three-dimensional shape. In addition, the molecular model represents the body-centered structure and face-centered structure with lattice points and lines, but this also does not represent a polyhedron.

In order to represent a polyhedron with blocks and connecting rods, it is necessary to extend connecting rods having different lengths from one block in a predetermined direction. A polyhedron can be formed by inserting connecting rods into the holes provided on each surface of the block, but in order to complete the polyhedron, a large number of connecting rods are correctly inserted into the block. I need to go. Therefore, it is desired to make the relationship between the orientation of each surface of the block and the connecting rod to be inserted easy to understand.

The present invention has been made in view of the above problems, and in a structure in which a connecting rod can be inserted into a block having a three-dimensional shape, the relationship between the orientation of each surface portion necessary for expressing a polyhedron and the length of the connecting rod can be determined. It is an object of the present invention to provide blocks and assembled toys that can be easily grasped and easily assembled so that even children can learn the geometrical relationships between polyhedra.

In order to solve the above problems, the block according to the invention of claim 1 is a block having a three-dimensional shape and having a plurality of connecting portions for fixing the connecting rods.
Each of the connecting portions faces any of the directions of the 26 faces constituting the rhombic cuboctahedron, and the surfaces around the connecting portion form face portions, respectively.
Of the 26 faces constituting the rhombic octahedron, six directions that are normal directions of the faces that face the three axes orthogonal to each other are set as the first direction.
Of the 26 faces that make up the rhombic cuboctahedron, 12 are the normal directions of the adjacent faces so as to be sandwiched between the two faces corresponding to the first direction at an angle of 45 °. Let the direction be the second direction
Of the 26 faces constituting the rhombic cuboctahedron, eight directions, which are the normal directions of the faces surrounded by the three faces corresponding to the second directions, are set as the third direction.
The surface around the connecting portion facing the first direction is the first surface portion.
The surface around the connecting portion facing the second direction is the second surface portion.
The surface around the connecting portion facing the third direction is the third surface portion.
The first face portion, the second face portion, and the third face portion have different modes.
It is characterized by having at least two or more of the first surface portion, the second surface portion, and the third surface portion.

According to the invention of claim 1, the first face portion, the second face portion, and the third face portion can be easily identified according to the mode of each face portion, and the connecting rod to be fixed to the connecting portion of each face portion can be easily selected. Therefore, it is possible to make it difficult to make a mistake in assembling the three-dimensional shape.

Further, the block according to the invention of claim 2 is characterized in that the aspect is formed by a combination of two or more morphological elements.

According to the invention of claim 2, the types of each form element can be reduced and the identification can be facilitated as compared with the case of identifying by one form element. Further, a morphological element determined by the geometrical relationship of the block, such as the outer shape of the surface, can also be used as the morphological element for identification.

Further, the block according to the invention of claim 3 is characterized in that the two or more morphological elements include a combination of an outer shape of each surface portion and a surface shape of the surface portion other than the connecting portion. There is.

According to the invention of claim 3, the difference between the first surface portion, the second surface portion and the third surface portion can be reliably visually recognized.

Further, the block according to the invention of claim 4 is characterized in that the two or more morphological elements include color.

According to the invention of claim 4, the difference between the first surface portion, the second surface portion and the third surface portion can be reliably visually recognized by the color.

Furthermore, the assembled toy according to the invention of claim 5 is an assembled toy having the block according to any one of claims 1 to 4 and a connecting rod.
The connecting rods include a first connecting rod fixed to a connecting portion corresponding to the first surface portion, a second connecting rod fixed to a connecting portion corresponding to the second surface portion, and the third connecting rod. Corresponds to at least two or more of the first surface portion, the second surface portion, and the third surface portion of the block, among the third connecting rods fixed to the connecting portions corresponding to the face portions of the above. Has a connecting rod,
When both ends of the second connecting rod are fixed to the block, the distance between the centers of the blocks is square root times 2 with respect to the distance between the centers in the case of the first connecting rod. Has a length of
When both ends of the third connecting rod are fixed to the block, the distance between the centers of the blocks is a square root multiple of 3 with respect to the distance between the centers in the case of the first connecting rod. It is configured to have a certain length.

According to the invention of claim 5, a silver ratio polyhedron can be formed by combining the block and the connecting rod.

According to the block according to the present invention, since the surface portion into which the connecting rod is inserted can be easily identified, it becomes easy to assemble the three-dimensional shape, and it can be used as an element of an assembly toy that even a child can assemble the three-dimensional shape.

According to the assembled toy according to the present invention, even a child can learn the geometrical relationship between polyhedra, and it can be used for the education of a child as an educational toy or a teaching material.

It is a front view, a plan view and a left side view of the block used for the assembly toy in this embodiment. It is sectional drawing near the surface of the 1st surface. It is a front view of the connecting rod. It is a perspective view of a state in which a regular hexahedron is formed by a block and a connecting rod. It is a grid diagram which becomes a guide when forming a three-dimensional shape. It is a figure which drew a white silver rhombic dodecahedron in a grid diagram. It is a figure which drew a regular hexahedron in a grid diagram. It is a figure which drew a regular octahedron in a grid diagram. It is a figure which drew a cube octahedron in a grid diagram. It is a perspective view of the state which formed the cuboctahedron by the block and the connecting rod. It is a figure which drew a regular tetrahedron in a grid diagram. It is a figure which drew a regular hexahedron formed by truncating a white silver rhombic dodecahedron at four obtuse angle points on a grid diagram. It is a figure which drew the regular tetrahedron which is formed by truncating a regular hexahedron at three diagonal vertices in a grid diagram. It is a figure which drew a regular octahedron formed by truncating a regular tetrahedron at the midpoint in a grid diagram. It is a figure which shows the relationship of the polyhedron explained with FIG. 12-14. It is a front view of the shape display sheet which represented the three-dimensional shape which cut the obtuse angle point of the white silver rhombic dodecahedron by three obtuse angle points only by the line diagram. It is a front view of a transparent sheet on which a grid diagram is drawn. It is a figure of the state in which the transparent sheet on which the grid diagram of FIG. 17 is drawn is superposed on the shape display sheet of FIG.

Embodiments of the present invention will be described in detail with reference to the drawings. The assembled toy of the present embodiment is composed of a large number of blocks 10 and connecting rods 20, and by connecting the plurality of blocks 10 with the connecting rods 20, a three-dimensional shape having the blocks 10 as grid points can be formed.

FIG. 1 shows a front view (FIG. 1 (a)), a plan view (FIG. 1 (b)), and a left side view (FIG. 1 (c)) of the block 10. The block 10 has a hexahedral shape, and a hole portion 14 is formed on each surface thereof. As shown in FIG. 1, the front view, the plan view, and the left side view of the block 10 have the same shape. In addition, the rear view, bottom view, and right side view, which are not shown in the figure, have the same shape.

The block 10 has a rhombic cuboctahedron shape. Of the faces of the block 10, the faces facing the three axes orthogonal to each other are referred to as the first face 11 (first face portion). Since the first surface 11 faces both positive and negative sides in the triaxial direction, one block 10 has six first surfaces 11. Further, among the faces of the block 10, the faces adjacent to the two first faces 11 so as to be sandwiched at an angle of 45 ° are designated as the second faces 12 (second face portions). One block 10 has twelve second surfaces 12. Further, among each surface of the block 10, eight triangular surfaces surrounded by the first surface 11 and the second surface 12 are designated as the third surface 13 (third surface portion). When the block 10 is arranged at the lattice points of the cubic lattice, the first surface 11 faces the extending direction of the lattice line, the second surface 12 faces the face-centered direction of the cubic lattice, and the third surface 13 is cubic. Head toward the body-centered lattice.

The holes 14 formed on each surface of the block 10 are all circular and have the same diameter. Further, the hole portion 14 has a sufficient depth for inserting and fixing the connecting rod 20 described later. The hole portion 14 may communicate with the hole portion 14 on the opposite surface.

The first surface 11, the second surface 12, and the third surface 13 each have different aspects in the combination of two or more morphological elements. The morphological elements forming the aspect include a shape, a pattern, and a color. Specifically, the outer shape of the surface, the surface shape of a portion of the surface other than the hole 14, the color applied to the surface, a mark, and the like. Indications on the surface of. Of these, in the block 10 of the present embodiment, the aspect of each surface is formed by the combination of the morphological element having the outer shape of the surface and the morphological element having the surface shape of the surface.

In the present embodiment, the first surface 11 has a square outer shape and has a recess 15 around the hole 14. FIG. 2 shows a cross-sectional view of the vicinity of the surface of the first surface 11. As shown in this figure, the surface of the first surface 11 is hollowed out around the hole 14, and a recess 15 is formed. The outer edge of the recess 15 is formed so as to be concentric with the hole 14. Therefore, the first surface 11 has an aspect in which a double circle is formed in the center of the square.

Since the second surface 12 has a square outer shape and is flat except for the hole portion 14, it has an aspect in which a single circle is formed at the center of the square. Since the third surface 13 has an outer shape of an equilateral triangle and is flat except for the hole 14, it has an aspect in which a single circle is formed at the center of the equilateral triangle.

Further, for each aspect, in addition to the outer shape of the surface and the surface shape of the surface, the color of the surface is added as a morphological element, and the first surface 11, the second surface 12, and the third surface 13 are different from each other. You may try to color it. For example, the first surface 11 can be colored blue, the second surface 12 can be colored red, and the third surface 13 can be colored yellow. Needless to say, it may be colored in other colors. Further, the combination of the morphological elements on the first surface 11, the second surface 12, and the third surface 13 may be other than the example of the present embodiment.

As described above, the first surface 11, the second surface 12, and the third surface 13 have different modes in the combination of the two or more morphological elements, so that the user corresponds to any surface. Can be clearly identified. In particular, since three types of surfaces are identified by a mode formed by a combination of two or more morphological elements, the number of types of each morphological element can be reduced as compared with the case where only one morphological element, for example, a color is used for identification. Can be easily done. Further, a morphological element determined by the geometrical relationship of the block, such as the outer shape of the surface, can also be used as the morphological element for identification.

FIG. 3 shows a front view of the connecting rod 20. The connecting rod 20 has a rod-shaped rod body 21, and has insertion portions 22 having slit portions 22a formed at both ends thereof. The insertion portion 22 can be inserted into the hole portion 14 of the block 10. Since the slit portion 22a is formed in the insertion portion 22, the insertion portion 22 can be easily inserted into the hole portion 14.

As shown in FIG. 3, as the connecting rod 20, a first connecting rod 23, a second connecting rod 24, and a third connecting rod 25 having different lengths are prepared. The first connecting rod 23, the second connecting rod 24, and the third connecting rod 25 all have the same diameter and are common in a structure having insertion portions 22 at both ends, and only the overall length is different. ing. Since all the holes 14 of the block 10 have the same diameter, the diameter of the connecting rod 20 can be the same regardless of the type. Therefore, by cutting out a common material, the first connecting rod 23 And a second connecting rod 24 and a third connecting rod 25 can be formed. Therefore, the manufacturing cost can be reduced.

In the second connecting rod 24, when the insertion portions 22 at both ends are inserted into the block 10, the distance between the centers of the blocks 10 is 2 with respect to the distance between the centers in the case of the first connecting rod 23. It has a length that is double the square root. Further, in the third connecting rod 25, when the insertion portions 22 at both ends are inserted into the block 10, the distance between the centers of the blocks 10 is relative to the distance between the centers in the case of the first connecting rod 23. It has a length that is twice the square root of 3.

The first connecting rod 23 is inserted into the first surface 11 of the surfaces of the block 10. The second connecting rod 24 is inserted into the second surface 12 of the surfaces of the block 10. The third connecting rod 25 is inserted into the third surface 13 of the surfaces of the block 10. By inserting each connecting rod 20 into the block 10 and connecting the blocks 10 to each other in this way, various polyhedra described later can be formed. At this time, the first surface 11, the second surface 12, and the third surface 13 of the block 10 have different forms as described above, while the first connecting rod 23 and the second surface 13 have different forms. Since the connecting rods 24 and the third connecting rods 25 are different in length, they can be easily identified. Therefore, it is possible to easily determine which surface of the block 10 each connecting rod 20 should be inserted into.

Next, a three-dimensional shape that can be formed by using the assembled toy of the present embodiment will be described. FIG. 4 shows a perspective view of a state in which a regular hexahedron is formed by the block 10 and the connecting rod 20. Since the first surface 11 of the block 10 faces in three axial directions orthogonal to each other, the first surfaces 11 are connected to each other by the first connecting rod 23 to form a regular hexahedron as shown in FIG. Can be formed.

As shown in FIG. 4, the three-dimensional shape of the assembled toy of the present embodiment is formed by connecting the blocks 10 at the grid points and connecting them with the connecting rods 20, so that it is convenient to represent them using a grid diagram. .. FIG. 5 shows a grid diagram that serves as a guide when forming a three-dimensional shape. In the grid diagram, the grid points are drawn so that the cubic lattice is viewed from one direction. The grid points include acute-angled points 31 (6 points) represented by triangles and obtuse-angled points 32 (8 points) represented by quadrangles, and the other grid points are represented by circles. The acute-angled points 31 and the obtuse-angled points 32 are used when drawing a silver rhombic dodecahedron.

FIG. 6 shows a grid diagram of a silver rhombic dodecahedron. As shown in this figure, a silver rhombic dodecahedron can be drawn by connecting the acute-angled points 31 and the obtuse-angled points 32 in the grid diagram. In this figure, the line connecting the grid points is represented by an alternate long and short dash line. In the grid diagram, the alternate long and short dash line represents that the third surfaces 13 of the block 10 are connected by the third connecting rod 25. By arranging the blocks 10 according to this grid diagram and connecting them with the third connecting rod 25, the three-dimensional shape of the silver rhombic dodecahedron can be formed.

FIG. 7 shows a diagram in which a regular hexahedron is drawn on a grid diagram. By connecting the obtuse angle points 32 of the grid diagram, a regular hexahedron can be drawn. The line connecting the obtuse angle points 32 is represented by a solid line. In the grid diagram, the solid line indicates that the first surfaces 11 of the block 10 are connected to each other by the first connecting rod 23. By arranging the blocks 10 according to this grid diagram and connecting them with the first connecting rod 23, the three-dimensional shape of the regular hexahedron shown in FIG. 4 can be formed.

FIG. 8 shows a diagram in which a regular octahedron is drawn on a grid diagram. A regular octahedron can be drawn by connecting the acute-angled points 31 of the grid diagram. The line connecting the acute angle points 31 is represented by a broken line. In the grid diagram, the broken line indicates that the second surfaces 12 of the block 10 are connected to each other by the second connecting rod 24. By arranging the blocks 10 according to this grid diagram and connecting them with the second connecting rod 24, a three-dimensional shape of a regular octahedron can be formed.

FIG. 9 shows a grid diagram of a cuboctahedron. A cubic octahedron can be drawn by connecting the face-centered points (12 points) of the silver rhombic dodecahedron, which is the midpoint of the adjacent obtuse angle points 32. By arranging the blocks 10 according to this grid diagram and connecting them with the second connecting rod 24, the three-dimensional shape of the cuboctahedron can be formed. FIG. 10 shows a perspective view of a cube octahedron formed by the block 10 and the connecting rod 20.

FIG. 11 shows a diagram in which a regular tetrahedron is drawn on a grid diagram. A regular tetrahedron can be drawn by connecting the obtuse angle points 32 on the diagonal in the grid diagram. By arranging the blocks 10 according to this grid diagram and connecting them with the second connecting rod 24, a regular tetrahedron three-dimensional shape can be formed.

Another polyhedral shape can be formed by sequentially cutting from the white silver rhombic dodecahedron shown in FIG. FIG. 12 shows a grid diagram of a regular hexahedron formed by truncating a white silver rhombic dodecahedron at four obtuse angle points. By arranging the blocks 10 according to this grid diagram and connecting the first connecting rod 23 and the third connecting rod 25, a silver rhombic dodecahedron and a regular hexahedron formed by truncating the dodecahedron You can intuitively understand the relationship between.

FIG. 13 shows a grid diagram of a regular tetrahedron formed by truncating a regular hexahedron at three diagonal vertices. The relationship between the regular hexahedron and the regular tetrahedron formed by truncating the block 10 by arranging the blocks 10 according to this grid diagram and connecting the first connecting rod 23 and the second connecting rod 24. Can be intuitively understood.

FIG. 14 shows a grid diagram of a regular octahedron formed by truncating a regular tetrahedron at the midpoint. By arranging the blocks 10 according to this grid diagram and connecting them with the second connecting rod 24, it is possible to intuitively understand the relationship between the regular tetrahedron and the regular octahedron formed by cutting it. it can.

The relationship between the polyhedra described in FIGS. 12 to 14 is shown in FIG. In this figure, "dual" refers to the relationship between a solid composed of figures having an inner heart and a solid formed by connecting the inner hearts. As shown in FIG. 15, by sequentially cutting from the silver rhombic dodecahedron, a regular hexahedron, a regular tetrahedron, a regular octahedron, and a cuboctahedron are formed, and the cubic octahedron is cut at the inner center of each face. By doing so, a silver rhombic dodecahedron is formed, and these polyhedrons circulate in that relationship. By assembling the assembled toy of the present embodiment, these relationships can be intuitively understood.

In order to form these polyhedra, it is necessary to accurately combine a large number of blocks 10 and connecting rods 20, and at that time, the form of each surface of the blocks 10 is different as described above, and which connecting rod 20 is used. It is possible for children to assemble polyhedra because it is easy to identify whether to insert the polyhedron. Therefore, this assembled toy can be used as an educational toy or a teaching material for the education of children.

A diagram showing a three-dimensional shape that can be formed by an assembled toy will be further described. In FIG. 6 and the like, the three-dimensional shape seen from one direction is shown as a diagram by representing the arrangement of the connecting rods 20 in the assembled toy with a line on the grid diagram on which the three-dimensional lattice shape is drawn. Regarding this figure, only the line representing the arrangement of the connecting rods 20 in the assembled toy can be described on the shape display sheet 40, and the grid diagram can be described on the transparent sheet 50. The shape display sheet 40 and the transparent sheet 50 can be used as a shape display sheet. Combinations can be formed.

FIG. 16 is a front view of the shape display sheet 40 showing a three-dimensional shape obtained by cutting the obtuse angle points of the white silver rhombic dodecahedron at three obtuse angle points only by a diagram, and FIG. 17 is a front view of the transparent sheet 50. The figures are shown respectively. The shape display sheet 40 can be formed of paper or the like. As described above, the three-dimensional shape formed by the assembled toy can be represented only by the shape display sheet 40 alone.

The lines drawn on the shape display sheet 40 are represented by a solid line for the first connecting rod 23, a broken line for the second connecting rod 24, and a alternate long and short dash line for the third connecting rod 25. It should be noted that the type of the connecting rod 20 may be represented by the difference in color instead of the difference in line type. Since the line of the shape display sheet 40 differs depending on the type of the connecting rod 20, that is, the orientation of the connecting rod 20 with respect to the block 10, the diagram of the shape display sheet 40 can be used as a clue when assembling the assembled toy. Can be done.

Although it is possible to assemble a three-dimensional shape with an assembled toy from the diagram described on the shape display sheet 40, the arrangement relationship of the connecting rods 20 in the three-dimensional space can be grasped only by the shape display sheet 40. Somewhat difficult. Therefore, it can be said that it is for advanced users to assemble a three-dimensional shape only by displaying the shape display sheet 40.

The transparent sheet 50 is a transparent sheet on which the grid diagram shown in FIG. 5 is drawn, and the grid diagram has a scale corresponding to the diagram of the shape display sheet 40. FIG. 18 shows a state in which the transparent sheet 50 on which the grid diagram of FIG. 17 is drawn is superimposed on the shape display sheet 40 of FIG. By superimposing the transparent sheet 50 on the shape display sheet 40, the diagram drawn on the shape display sheet 40 can be overlaid on the grid diagram, and the block 10 and the connecting rod 20 of the assembled toy can be viewed three-dimensionally. It is possible to make it easier to understand how to arrange the toys. Therefore, it can be said that it is for beginners to assemble a three-dimensional shape based on the display in which the transparent sheet 50 is superimposed on the shape display sheet 40.

In this way, the figure showing the three-dimensional shape formed by the assembled toy is divided into a shape display sheet 40 showing only the shape and a transparent sheet 50 showing the grid diagram, so that it can be used properly according to the proficiency level of the user. it can. Further, when the assembled toy is used for education, it is possible to try assembling only with the shape display sheet 40 at first, and if it gets stuck, the transparent sheet 50 can be appropriately stacked on the shape display sheet 40 to proceed with the assembly.

Although the embodiment of the present invention has been described above, the application of the present invention is not limited to the present embodiment and can be applied in various ways within the scope of the technical idea thereof. For example, in the present embodiment, the block 10 is a polyhedron having a first surface 11, a second surface 12, and a third surface, but has at least a first surface and a second surface. It may be a polyhedron of the type.

Further, the block 10 is not limited to a polyhedron, and may be another solid, for example, a sphere. In this case, the hole portion 14 and the surface portion around the hole portion 14 are formed so as to face the same direction as the block 10 of FIG. In the sphere, the first surface 11, the second surface 12, and the third surface 13 in the above-mentioned block 10 do not exist. Therefore, instead of this, the aspect of the surface portion around the hole portion 14 should be inserted. Different for each bar 20. Morphological elements that form the aspect of the surface around the hole 14 include the surface shape, color, and pattern of the block 10. The combination of two or more of these morphological elements forms the aspect of the surface around the hole 14. The hole 14 into which the first connecting rod 23 is inserted, the hole 14 into which the second connecting rod 24 is inserted, and the hole 14 into which the third connecting rod 25 is inserted are formed on the surrounding surface portion. The modes are set to be different from each other.

Further, regarding the connecting rod 20, the first connecting rod 23, the second connecting rod 24, and the third connecting rod 25 may be identified by a morphological element. For example, the first connecting rod 23, the second connecting rod 24, and the third connecting rod 25 are colored in different colors or have different patterns, or the combinations of colors and patterns are different. And so on. In this case, by setting the mode of the connecting rod 20 and the mode of the surface of the block 10 into which the connecting rod 20 is inserted to be the same, for example, to have the same color, each hole portion of the block 10 is set. The connecting rod 20 to be inserted with respect to 14 can be more easily identified.

10 Block 11 1st surface 12 2nd surface 13 3rd surface 14 Hole part 15 Recessed part 20 Connecting rod 21 Rod body 22 Inserting part 22a Slit part 23 1st connecting rod 24 2nd connecting rod 25 3rd Connecting rod 30 Lattice diagram 31 Sharp angle point 32 Obtuse angle point 40 Shape display sheet 50 Transparent sheet

The present invention relates to an assembled toy capable of creating a three-dimensional shape such as a regular or semi-regular polyhedron by connecting a plurality of blocks formed in a three-dimensional shape with a connecting rod.

The present invention has been made in view of the above problems, and in a structure in which a connecting rod can be inserted into a block having a three-dimensional shape, the relationship between the orientation of each surface portion necessary for expressing a polyhedron and the length of the connecting rod can be determined. By making it easy to grasp and assemble, it is an object of the present invention to provide an assembled toy that even a child can learn the geometrical relationship between polyhedra.

In order to solve the above problems, the assembling toy according to the invention of claim 1 is an assembling toy having a three-dimensional shape and a block having a plurality of connecting portions for fixing the connecting rods, and the connecting rods .
Each of the connecting portions faces any of the directions of the 26 faces constituting the rhombic cuboctahedron, and the surfaces around the connecting portion each form a surface portion.
Of the 26 faces constituting the rhombic octahedron, six directions that are normal directions of the faces that face the three axes orthogonal to each other are set as the first direction.
Of the 26 faces that make up the rhombic cuboctahedron, 12 are the normal directions of the adjacent faces so as to be sandwiched between the two faces corresponding to the first direction at an angle of 45 °. Let the direction be the second direction
Of the 26 faces constituting the rhombic cuboctahedron, eight directions, which are the normal directions of the faces surrounded by the three faces corresponding to the second directions, are set as the third direction.
The surface around the connecting portion facing the first direction is the first surface portion.
The surface around the connecting portion facing the second direction is the second surface portion.
The surface around the connecting portion facing the third direction is the third surface portion.
The first face portion, the second face portion, and the third face portion have different modes.
Among the first surface and the second surface and the third surface portion, it has at least two or more,
The connecting rod includes a first connecting rod fixed to the connecting portion corresponding to the first surface portion, a second connecting rod fixed to the connecting portion corresponding to the second surface portion, and the third connecting rod. Of the third connecting rod fixed to the connecting portion corresponding to the face portion of the block, the connecting rod corresponding to the surface portion of the block is provided.
When both ends of the second connecting rod are fixed to the block, the distance between the centers of the blocks is square root times 2 with respect to the distance between the centers in the case of the first connecting rod. Has a length of
When both ends of the third connecting rod are fixed to the block, the distance between the centers of the blocks is a square root multiple of 3 with respect to the distance between the centers in the case of the first connecting rod. It is configured to have a certain length .

According to the invention of claim 1, the first face portion, the second face portion, and the third face portion can be easily identified according to the mode of each face portion, and the connecting rod to be fixed to the connecting portion of each face portion can be easily selected. Therefore, it is possible to make it difficult to make a mistake in assembling the three-dimensional shape. In addition, a silver ratio polyhedron can be formed by combining the block and the connecting rod.

Further, the assembled toy according to the invention of claim 2 is characterized in that the embodiment is formed by a combination of two or more morphological elements.

The assembled toy according to the third aspect of the present invention is characterized in that the two or more morphological elements include a combination of an outer shape of each face portion and a surface shape of the face portion other than the connecting portion. ing.

Further, the assembled toy according to the invention of claim 4 is characterized in that the two or more morphological elements include color.

According to the assembled toy according to the present invention, since the surface portion into which the connecting rod is inserted can be easily identified, the three-dimensional shape can be easily assembled, and it can be used as an element of the assembled toy that even a child can assemble the three-dimensional shape. In addition, children can learn the geometrical relationships between polyhedra, and they can be used for children's education as educational toys or teaching materials.

Claims (5)

A block having a three-dimensional shape and having a plurality of connecting portions for fixing connecting rods.
Each of the connecting portions faces any of the directions of the 26 faces constituting the rhombic cuboctahedron, and the surfaces around the connecting portion each form a surface portion.
Of the 26 faces constituting the rhombic octahedron, six directions that are normal directions of the faces that face the three axes orthogonal to each other are set as the first direction.
Of the 26 faces that make up the rhombic cuboctahedron, 12 are the normal directions of the adjacent faces so as to be sandwiched between the two faces corresponding to the first direction at an angle of 45 °. Let the direction be the second direction
Of the 26 faces constituting the rhombic cuboctahedron, eight directions, which are the normal directions of the faces surrounded by the three faces corresponding to the second directions, are set as the third direction.
The surface around the connecting portion facing the first direction is the first surface portion.
The surface around the connecting portion facing the second direction is the second surface portion.
The surface around the connecting portion facing the third direction is the third surface portion.
The first face portion, the second face portion, and the third face portion have different modes.
A block having at least two or more of the first surface portion, the second surface portion, and the third surface portion. The block according to claim 1, wherein the aspect is formed by a combination of two or more morphological elements. The block according to claim 2, wherein the two or more morphological elements include a combination of an outer shape of each surface portion and a surface shape of the surface portion other than the connecting portion. The block according to claim 2 or 3, wherein the two or more morphological elements include a color. An assembled toy having the block according to any one of claims 1 to 4 and a connecting rod.
The connecting rods include a first connecting rod fixed to a connecting portion corresponding to the first surface portion, a second connecting rod fixed to a connecting portion corresponding to the second surface portion, and the third connecting rod. Corresponds to at least two or more of the first surface portion, the second surface portion, and the third surface portion of the block, among the third connecting rods fixed to the connecting portions corresponding to the face portions of the above. Has a connecting rod,
When both ends of the second connecting rod are fixed to the block, the distance between the centers of the blocks is square root times 2 with respect to the distance between the centers in the case of the first connecting rod. Has a length of
When both ends of the third connecting rod are fixed to the block, the distance between the centers of the blocks is a square root multiple of 3 with respect to the distance between the centers in the case of the first connecting rod. An assembled toy characterized by having a certain length.

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