JP6627037B1 - Assembly toys - Google Patents

Abstract

An object of the present invention is to easily assemble a structure in which a connecting rod can be inserted into a block having a three-dimensional shape, in which a relation between a direction of each surface necessary for expressing a polyhedron and a length of the connecting rod can be easily grasped. The present invention provides a block and an assembly toy capable of learning the geometric relationship between polyhedrons even by children. A block 10 having a three-dimensional shape and having a hole 14 into which a connecting rod 20 is inserted. The first surface portion 11 facing any one of three orthogonal triaxial directions, the second surface portion 12 forming a predetermined angle with respect to the first surface portion 11, and the first surface portion 11 and the second surface portion 12 And the third surface 13 forms a predetermined angle. The first surface 11, the second surface 12, and the third surface 13 have different modes, respectively. [Selection diagram] Fig. 1

Description

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

  Some of the regular and semi-regular polyhedra represent naturally occurring forms, where the rationality and mystery of nature are hidden. These polyhedra represent the laws of nature and have been studied for many years by crystallographic and mathematical experts. In addition, polyhedral enthusiasts are engaged in their own research because of their mystery and mystery.

  These studies are basically performed by professional adults. In addition, advanced geometric knowledge is used to explain the polyhedron and the geometric relationship between the polyhedrons. For this reason, children such as elementary school students are less likely to be interested. However, a regular / semi-regular polyhedron has a mystery and a fun as a polyhedron, and therefore, originally, drives a child's curiosity. Therefore, such a polyhedron is suitable as a teaching material for children to learn with interest.

  Normally, a regular polyhedron or a semi-regular polyhedron is either a surface representation of a polyhedron on a paper surface, or a point or line. However, this makes it difficult to intuitively understand the three-dimensional shape. Therefore, the applicant of the present application expresses a polyhedron by lattice points and lines connecting the lattice points, so that the lattice points are blocks and the lines are connection rods, and a plurality of blocks are connected by connection rods to form a three-dimensional shape. Inspired by toys.

  2. Description of the Related Art Conventionally, there is a toy disclosed in Patent Literature 1 as a toy to play by connecting a plurality of blocks with a connecting rod. Further, as a model 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

  In Patent Literature 1, the blocks are connected by connecting rods, but they do not form a geometric three-dimensional shape. Although the molecular model represents the body-centered structure and the face-centered structure with lattice points and lines, this 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 each predetermined direction. Polyhedrons can be formed by inserting connecting rods into the holes provided on each side of the block.However, to complete the polyhedron, insert many connecting rods correctly into the block. It is necessary to go. For this reason, it is desired to make it easy to understand the relationship between the direction of each surface of the block and the connecting rod to be inserted.

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 direction of each surface portion and the length of the connecting rod required to represent a polyhedron is described. An object of the present invention is to provide an assembling toy that can be easily grasped and facilitated assembling so that even a child can learn the geometric relationship between polyhedrons.

In order to solve the above problem, an assembling toy according to the invention of claim 1 includes a block having a three-dimensional shape and having a hole for inserting a connecting rod, and the connecting rod ,
The block includes a first surface portion facing one of three orthogonal directions orthogonal to each other, a second surface portion forming a predetermined angle with respect to the first surface portion, and the first surface portion and the second surface portion. And a third surface portion forming a predetermined angle with respect to
The block has an oblique octahedral shape,
The first surface serving as the first surface portion has six square surfaces facing each of the three axial directions,
The second surface serving as the second surface has 12 square surfaces adjacent to each other so as to be sandwiched between two surfaces of the first surface at an angle of 45 °,
The third surface serving as the third surface has eight triangular surfaces surrounded by the three second surfaces,
It said first surface portion and a second face portion and the third surface portion can have a different aspect,
The connection rod includes a first connection rod inserted into the hole on the first surface, a second connection rod inserted into the hole on the second surface, and a hole on the third surface. A third connecting rod inserted into the part,
The second connecting rod has a distance between the centers of the blocks when the both ends are inserted into the block, the square distance of 2 times the distance between the centers of the first connecting rod. Has a length of
When the both ends are inserted into the block, the distance between the centers of the blocks is three times the square root of the distance between the centers of the first connection rod. It is characterized by having a certain length .

According to the first aspect of the present invention, the first surface portion, the second surface portion, and the third surface portion can be easily identified according to the mode of each surface portion, and the connecting rod to be inserted into the hole of each surface portion can be easily selected. Therefore, it is possible to make it difficult to assemble the three-dimensional shape. Further, the connecting rods can be extended from the block in the triaxial direction, the face-center direction, and the body-center direction of the cubic lattice, respectively, and a combination of the blocks and the connecting rods can form a silver-silver ratio polyhedron.

  The block according to the second aspect of the present invention is characterized in that the aspect is formed by combining two or more form elements.

  According to the second aspect of the present invention, the type of each form element can be reduced and the identification can be easily performed, as compared with the case where identification is performed by one form element. Also, a form element determined by the geometric relationship of the blocks, such as the outer shape of the plane, can be used as a form element for identification.

  The block according to the invention of claim 3 is characterized in that the two or more form elements include a combination of an outer shape of each surface portion and a surface shape other than the hole portion of the surface portion. I have.

  According to the third aspect of the present invention, the difference between the first surface, the second surface, and the third surface can be reliably recognized.

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

  According to the fourth aspect of the present invention, the difference between the first surface, the second surface, and the third surface can be visually recognized by color.

  ADVANTAGE OF THE INVENTION According to the assembled toy which concerns on this invention, a child can learn the geometric relationship between polyhedrons, and can be used for educational of a child as an educational toy or educational material.

FIG. 2 is a front view, a plan view, and a left side view of a block used in the assembling toy according to the embodiment. It is sectional drawing of the surface vicinity of the 1st surface. It is a front view of a connection rod. It is a perspective view in the state where a regular hexahedron was formed with a block and a connecting rod. It is a lattice figure used as a guide at the time of forming a three-dimensional shape. It is the figure which drawn the white silver rhombus dodecahedron on the lattice diagram. It is the figure which drawn the regular hexahedron in the grid diagram. It is the figure which drawn the regular octahedron in the grid diagram. It is the figure which drew the cubic octahedron in the grid diagram. It is a perspective view in the state where a cubic octahedron was formed with a block and a connecting rod. It is the figure which drew the regular tetrahedron in the grid diagram. It is the figure which drawn the regular hexahedron which truncated the white silver rhombus dodecahedron at four obtuse points on the lattice diagram. FIG. 4 is a diagram illustrating a regular tetrahedron formed by truncating a regular hexahedron at three diagonal vertices in a lattice diagram. It is the figure which drawn the regular octahedron which truncated the regular tetrahedron at the midpoint on the grid diagram. FIG. 15 is a diagram showing the relationship between polyhedrons described in FIGS. It is a front view of the shape display sheet | seat which represented only the three-dimensional shape which truncated the obtuse point of the white silver rhombus dodecahedron by three obtuse points. It is a front view of the transmission sheet on which the lattice diagram was drawn. FIG. 18 is a view showing a state in which a transmission sheet on which the lattice diagram of FIG. 17 is drawn is superimposed on the shape display sheet of FIG.

  An embodiment of the present invention will be described in detail with reference to the drawings. The assembled toy according to the present embodiment includes a large number of blocks 10 and connecting rods 20. By connecting the plurality of blocks 10 with the connecting rods 20, a three-dimensional shape having the blocks 10 as lattice points can be formed.

  FIG. 1 shows a front view (FIG. 1A), a plan view (FIG. 1B), and a left side view (FIG. 1C) of the block 10. The block 10 has a hexahedral shape, and a hole 14 is formed on each surface. As shown in FIG. 1, the block 10 has the same shape in a front view, a plan view, and a left side view. The same shape is applied to the rear view, the bottom view, and the right side view, which are not shown in the drawing.

  The block 10 has an oblique octahedral shape. Of the surfaces of the block 10, the surfaces facing in the three-axis directions orthogonal to each other are referred to as first surfaces 11 (first surface portions). Since the first surface 11 faces both the positive and negative sides in the triaxial direction, one block 10 has six first surfaces 11. Further, among the respective surfaces of the block 10, a surface adjacent to the two first surfaces 11 at an angle of 45 ° is defined as a second surface 12 (a second surface portion). One block 10 has twelve second surfaces 12. In addition, among the surfaces of the block 10, eight triangular surfaces surrounded by the first surface 11 and the second surface 12 are referred to as a third surface 13 (third surface portion). When the blocks 10 are arranged at the lattice points of the cubic lattice, the first surface 11 is oriented in the direction in which the lattice lines extend, the second surface 12 is oriented in the direction of the center of the cubic lattice, and the third surface 13 is oriented in the cubic lattice. Head towards the body center of the grid.

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

  The first surface 11, the second surface 12, and the third surface 13 each have different aspects in a combination of two or more form elements. The form elements forming the aspect include shape, pattern, and color. Specifically, the outer shape of the surface, the surface shape of a portion of the surface other than the hole portion 14, the color applied to the surface, a mark, and the like. And the like on the surface of (1). Among these, in the block 10 of the present embodiment, the form of each surface is formed by a combination of the form element having the outer shape of the surface and the form 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 near the surface of the first surface 11. As shown in this figure, the surface of the first surface 11 is hollowed 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. For this reason, the first surface 11 has an aspect in which a double circle is formed at the center of the square.

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

  In addition, regarding the aspect of each surface, 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 form factor, and the first surface 11, the second surface 12, and the third surface 13 are different from each other. You may make it color. 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, the color may be colored in other colors. In addition, the combination of the form 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, since the first surface 11, the second surface 12, and the third surface 13 have different aspects in the combination of two or more form elements, the user corresponds to each surface. Can be clearly identified. In particular, since three types of surfaces are identified in a form formed by a combination of two or more form elements, the number of types of each form element can be reduced as compared with the case of identifying only one form element, for example, only a color. Can be easily done. Also, a form element determined by the geometric relationship of the blocks, such as the outer shape of the plane, can be used as a form element for identification.

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

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

  When the insertion portions 22 at both ends are inserted into the block 10, the distance between the centers of the blocks 10 is two times the distance between the centers in the case of the first connection rod 23. It has a length that is square root times. When the insertion portions 22 at both ends are inserted into the block 10, the distance between the centers of the blocks 10 is larger than the distance between the centers of the first connection rods 23. It has a length that is a square root times three.

  The first connecting rod 23 is inserted into the first surface 11 of the blocks 10. The second connecting rod 24 is inserted into the second surface 12 of the blocks 10. The third connecting rod 25 is inserted into the third surface 13 of the blocks 10. By inserting the connecting rods 20 into the blocks 10 and connecting the blocks 10 in this manner, various polyhedrons 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 The connecting rod 24 and the third connecting rod 25 can be easily distinguished from each other because of their different lengths, so that it is possible to easily determine on which surface of the block 10 each connecting rod 20 should be inserted.

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

  The three-dimensional shape of the assembled toy according to the present embodiment is formed by connecting the blocks 10 at the grid points and connecting them with the connecting rods 20 as shown in FIG. . FIG. 5 shows a lattice diagram that serves as a guide when forming a three-dimensional shape. In the grid diagram, grid points are drawn so as to be arranged when the cubic grid is viewed from one direction. The lattice points include an acute point 31 (6 points) represented by a triangle and an obtuse point 32 (8 points) represented by a rectangle, and the other lattice points are represented by circles. The acute angle point 31 and the obtuse angle point 32 are used when drawing a silver rhombus dodecahedron.

  FIG. 6 shows a diagram in which a silver rhombus dodecahedron is drawn in a lattice diagram. As shown in this figure, a silver rhombus dodecahedron can be drawn by connecting the acute angle point 31 and the obtuse angle point 32 of the lattice diagram. In this figure, the lines connecting the lattice points are represented by alternate long and short dash lines. In the lattice diagram, a dashed line indicates that the third surfaces 13 of the blocks 10 are connected to each other by the third connecting rods 25. By arranging the blocks 10 according to the lattice diagram and connecting the blocks 10 with the third connecting rods 25, a three-dimensional shape of a white silver rhombic dodecahedron can be formed.

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

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

  FIG. 9 shows a diagram in which a cubo-octahedron is drawn in a lattice diagram. A cubo-octahedron can be drawn by connecting the face center points (12 points) of the white silver rhombic dodecahedron which is the midpoint of the adjacent obtuse point 32. By arranging the blocks 10 according to this lattice diagram and connecting them with the second connecting rods 24, a cuboctahedral three-dimensional shape can be formed. FIG. 10 shows a perspective view of a state where a cubic octahedron is formed by the block 10 and the connecting rod 20.

  FIG. 11 shows a diagram in which a regular tetrahedron is drawn in a lattice diagram. If the obtuse points 32 on the diagonal are connected in the lattice diagram, a regular tetrahedron can be drawn. By arranging the blocks 10 according to the lattice diagram and connecting them with the second connecting rods 24, a three-dimensional regular tetrahedral shape can be formed.

  Another polyhedron shape can be formed by sequentially cutting off from the white silver rhombus dodecahedron shown in FIG. FIG. 12 is a diagram illustrating a regular hexahedron formed by truncating a silver rhombus dodecahedron at four obtuse points in a lattice diagram. By arranging the blocks 10 according to this lattice diagram and connecting them with the first connecting rods 23 and the third connecting rods 25, a regular silver rhombic dodecahedron and a regular hexahedron formed by truncating it are obtained. Intuitively understand the relationship.

  FIG. 13 is a diagram illustrating a regular tetrahedron formed by truncating a regular hexahedron at three diagonal vertices in a lattice diagram. By arranging the blocks 10 according to this lattice diagram and connecting the blocks 10 with the first connecting rod 23 and the second connecting rod 24, the relation between the regular hexahedron and the regular tetrahedron formed by truncating the regular hexahedron Can be intuitively understood.

  FIG. 14 shows a diagram in which a regular octahedron obtained by truncating a regular tetrahedron at a midpoint is drawn in a lattice diagram. By arranging the blocks 10 according to this lattice diagram and connecting them with the second connecting rods 24, it is possible to intuitively understand the relationship between the regular tetrahedron and the regular octahedron formed by truncating it. it can.

  FIG. 15 shows the relationship between the polyhedrons described with reference to FIGS. In this figure, “dual” refers to a relationship between a solid formed by a figure having an inner center and a solid formed by connecting the inner centers. As shown in FIG. 15, a regular hexahedron, a regular tetrahedron, a regular octahedron, and a cubo-octahedron are formed by successively truncating from a silver rhombus dodecahedron, and the cubic octahedron is truncated at the center of each face. By doing so, a silver rhombus dodecahedron is formed, and these polyhedra are circulating in their relationship. By assembling the assembling toy of the present embodiment, these relationships can be intuitively understood.

  In order to form these polyhedrons, it is necessary to accurately assemble a large number of blocks 10 and connecting rods 20. At this time, since the form of each surface of the block 10 is different as described above, Can be easily identified, so that children can assemble a polyhedron. Therefore, this assembled toy can be used as an educational toy or educational material for children's education.

  A diagram illustrating a three-dimensional shape that can be formed by the assembled toy will be further described. In FIG. 6 and the like, the three-dimensional shape viewed from one direction is illustrated by expressing the arrangement of the connecting rods 20 in the assembled toy with a line with respect to the lattice diagram in which the three-dimensional lattice shape is drawn. In this figure, only the lines indicating the arrangement of the connecting rods 20 in the assembled toy are described on the shape display sheet 40, and the grid diagram can be described on the transmission sheet 50. Combinations can be formed.

  FIG. 16 is a front view of the shape display sheet 40 showing only a diagram of a three-dimensional shape obtained by truncating the obtuse point of the white silver rhombic dodecahedron at three obtuse points, and FIG. 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.

  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 dashed line for the third connecting rod 25. The type of the connecting rod 20 may be represented by a color difference instead of a line type difference. Since the line of the shape display sheet 40 is different depending on the type of the connecting rod 20, that is, the direction of the connecting rod 20 with respect to the block 10, the diagram of the shape display sheet 40 is used as a clue when assembling the assembled toy. Can be.

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

  The transmissive sheet 50 is a transparent sheet in which the lattice diagram shown in FIG. 5 is drawn, and the lattice 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 lattice diagram of FIG. 17 is drawn is superimposed on the shape display sheet 40 of FIG. By overlaying the transparent sheet 50 on the shape display sheet 40, the diagram drawn on the shape display sheet 40 can be viewed on the lattice diagram, and the block 10 and the connecting rod 20 of the assembled toy can be three-dimensionally displayed. Can be easily grasped as to how to arrange them. Therefore, it can be said that assembling a three-dimensional shape based on a display in which the transparent sheet 50 is superimposed on the shape display sheet 40 is intended for beginners.

  As described above, the figure representing the three-dimensional shape formed by the assembled toy is divided into the shape display sheet 40 representing only the shape and the transparent sheet 50 representing the grid diagram, so that the figure can be selectively used according to the user's proficiency. it can. Further, in the case of using the assembled toy for education, it is also possible to use a configuration in which the assembling toy is first challenged only with the shape display sheet 40, and when the dead end is reached, the transparent sheet 50 is appropriately stacked on the shape display sheet 40 and the assembly is advanced.

  As described above, the embodiments of the present invention have been described. However, the application of the present invention is not limited to the embodiments, and can be variously applied within the scope of the technical idea. For example, in the present embodiment, the block 10 is a hexahedron having a first surface 11, a second surface 12, and a third surface. However, the block 10 has at least a first surface and a second surface. May be used.

 The block 10 is not limited to a polyhedron, but may be another solid, for example, a sphere. In this case, the hole 14 and its surrounding surface are formed so as to face in the same direction as the block 10 in FIG. In the sphere, since the first surface 11, the second surface 12, and the third surface 13 in the above-described block 10 do not exist, instead of this, the form of the surface around the hole 14 is changed to the connection to be inserted. Different for each rod 20. Form factors 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 features forms an 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, The modes are set to be different from each other.

  Further, with respect to the connecting rod 20, the first connecting rod 23, the second connecting rod 24, and the third connecting rod 25 may be identified by the form factor. For example, the first connecting rod 23, the second connecting rod 24, and the third connecting rod 25 are colored in different colors, have different patterns, or have different combinations of colors and patterns. And the like. In this case, 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 are set to be the same, for example, by setting the same color. The connecting rods 20 to be inserted into the 14 can be more easily identified.

DESCRIPTION OF SYMBOLS 10 Block 11 1st surface 12 2nd surface 13 3rd surface 14 Hole 15 recess 20 Connection rod 21 Bar main body 22 Insertion part 22a Slit part 23 1st connection rod 24 2nd connection rod 25 3rd Connecting rod 30 Grid diagram 31 Acute point 32 Obtuse point 40 Shape display sheet 50 Transparent sheet

Claims (4)

A block having a three-dimensional shape and having a hole for inserting a connecting rod, and the connecting rod ,
The block includes a first surface portion facing one of three orthogonal directions orthogonal to each other, a second surface portion forming a predetermined angle with respect to the first surface portion, and the first surface portion and the second surface portion. And a third surface portion forming a predetermined angle with respect to
The block has an oblique octahedral shape,
The first surface serving as the first surface portion has six square surfaces facing each of the three axial directions,
The second surface serving as the second surface has 12 square surfaces adjacent to each other so as to be sandwiched between two surfaces of the first surface at an angle of 45 °,
The third surface serving as the third surface has eight triangular surfaces surrounded by the three second surfaces,
It said first surface portion and a second face portion and the third surface portion can have a different aspect,
The connection rod includes a first connection rod inserted into a hole in the first surface, a second connection rod inserted into a hole in the second surface, and a hole in the third surface. A third connecting rod inserted into the part,
The second connecting rod has a distance between the centers of the blocks when the both ends are inserted into the block, the square distance of 2 times the distance between the centers of the first connecting rod. Has a length of
When the both ends are inserted into the block, the distance between the centers of the blocks is three times the square root of the distance between the centers of the first connection rod. An assembling toy having a length . The assembled toy according to claim 1, wherein the aspect is formed by a combination of two or more form elements. The assembled toy according to claim 2, wherein the two or more form elements include a combination of an outer shape of each surface portion and a surface shape of the surface portion other than the hole. The assembled toy according to claim 2, wherein the two or more form elements include a color.

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