JP2014200280A - Educational toy - Google Patents

Abstract

The present invention provides a technical means for effectively nurturing children's creativity.
An educational toy is composed of 24 types of pieces 1 _m (m = 1 to 24). Each of the pieces 1 _m (m = 1 to 24) is divided into nine main faces 2F and 2B in a rectangular parallelepiped having both main faces 2F and 2B facing each other in the thickness direction with a square having four sides of a predetermined length L. It has a shape obtained by cutting out 1 to 4 sections out of 9 sections. Each piece 1 _m (m = 1 to 24) is provided with slits in the peripheral surface 3 and the corners of the notches.
[Selection] Figure 1

Description

  The present invention relates to a technology that supports the development of children's creativity.

  There is Patent Document 1 as a document disclosing this kind of technology. The puzzle disclosed in the literature 1 includes a fitting piece formed in an arbitrary shape such as a circle or a rectangle, a first base in which a through hole into which the fitting piece is inserted, and a fitting piece. And a second pedestal in which a non-through hole of the same shape is formed. In this educational toy, the first and second pedestals are formed so as to be stacked without blocking the through hole and the hole. In this educational toy, in a state where the fitting piece is fitted in the hole portion of the second pedestal, the upper portion of the fitting piece is exposed above the upper surface of the hole portion of the first pedestal. The first and second pedestals can be stacked so as to fit the through holes of the first pedestal. Therefore, according to this educational toy, a child who is a user can enjoy the act of fitting the fitting piece into another member multiple times. Therefore, according to this educational toy, it can greatly contribute to the improvement of intellectual education that increases the ability to recognize figures while playing.

Japanese Patent Laid-Open No. 2001-113057 Asanuma Takuro, children's modeling activities and current issues, Bulletin of Junior College of China, 1992, pp. 77-85

  However, the technique of Patent Document 1 has a completed form of a shaped object formed by combining a plurality of pieces, and a work for forming the completed form is required. For this reason, the technique of Patent Document 1 has a problem that a sufficient effect cannot be expected as a tool for raising children's “creativity”.

  This invention is made | formed in view of such a subject, and it aims at providing the technical means which can raise a child's creativity effectively.

  In order to solve the above-mentioned problems, the present invention provides a rectangular parallelepiped having 9 squares each of which is a rectangular parallelepiped having squares each having four sides of a predetermined length L in the thickness direction. A plurality of types of pieces having a shape in which one to four sections are cut out, and a slit extending in a direction parallel to any of the four sides of the two main surfaces is provided in the peripheral surface and the cutout of the piece. A plurality of types of pieces, and repeating the operation of fitting the slits of these pieces so that both the main surfaces of one piece and the other main surfaces of another piece are orthogonal to each other. There is provided an educational toy characterized in that a three-dimensional structure is formed.

  In the educational toy according to the present invention, one to four sections are cut out of nine sections obtained by dividing the two main faces of the rectangular parallelepiped into nine main faces facing each other in the thickness direction with a square having four sides of a predetermined length L. It consists of a plurality of types of pieces having different shapes. In the present invention, by combining a plurality of types of pieces having such different shapes, it is possible to realize various and complicated modeling that could not be realized by combining a plurality of pieces having a single shape. Can do. Therefore, according to the present invention, children's creativity can be effectively nurtured.

It shows 24 different pieces ₁ m (m = _1~24) forming the educational toy according to an embodiment of the present invention. Is a diagram showing details of pieces 1 ₁ configuration in FIG. Is a diagram showing details of pieces 1 _second configuration in FIG. Is a diagram showing details of pieces 1 ₃ configuration in FIG. Is a diagram showing details of construction of the piece 1 ₄ in FIG. Is a diagram showing details of construction of the piece 1 ₅ in Figure 1. It is a figure which shows the detail of a structure of the piece ₁₆ in FIG. It is a figure which shows the detail of a structure of the piece ₁₇ in FIG. It is a figure which shows the detail of a structure of the piece ₁₈ in FIG. It is a figure which shows the detail of a structure of the piece ₁₉ in FIG. It is a diagram illustrating a detailed configuration of pieces 1 ₁₀ in FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₁ of FIG. 1. It is a diagram illustrating a detailed configuration of the piece 1 ₁₂ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₃ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₄ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₅ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₆ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₇ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₈ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₁₉ of FIG. 1. Is a diagram illustrating a detailed configuration of the pieces 1 ₂₀ in FIG. 1. It is a diagram showing details of construction of the piece 1 ₂₁ of FIG. 1. It is a diagram showing details of construction of the piece 1 ₂₂ of FIG. 1. It is a diagram illustrating a detailed configuration of pieces 1 ₂₃ in FIG. 1. It is a diagram showing details of construction of the piece 1 ₂₄ of FIG. 1. It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} . It is a diagram showing an assembly example of pieces of FIG. _{1 1 m (m = 1~24)} .

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing 24 types of pieces 1 _m (m = 1 to 24) forming an educational toy according to an embodiment of the present invention. This educational toy is a set of a plurality of pieces 1 _m (m = 1 to 24).

Twenty-four kinds of pieces 1 _m (m = 1 to 24) in this educational toy are rectangular parallelepipeds having squares having four sides as a predetermined length L (for example, L = 4 mm) as opposed to the main surfaces in the thickness direction. one-piece 1 ₁ and provided with a slit on the circumferential surface, a slit 4 the both main surfaces of the pieces 1 ₁ in the lack peripheral surface and cut but cut away one section of the 9 divided 9 partitioned in a grid pattern 3 types of pieces 1 ₂ , 1 ₃ , 1, ₄ and the main surface of the piece 1 ₁ are divided into 9 pieces in a grid shape, and 2 sections of the 9 sections are cut out in the peripheral surface and in the cutout Three of the seven types of pieces 1 ₅ , 1 ₆ , 1 ₇ , 1 ₈ , 1 ₉ , 1 ₁₀ , 1 ₁₁ provided with slits, and 9 sections obtained by dividing the two main surfaces of the piece 1 ₁ into 9 grids. A slit was provided in the peripheral surface of the notched section and in the notch. The piece _{1 12,} 1 _{13, 1 14,} 1 _{15, 1 16,} 1 _{17, 1 18} of the kind, cut away 4 compartments of the nine compartments both main surfaces were 9 divided in a grid pattern in the piece _{1 1} It consists of six kinds of pieces 1 ₁₉ , 1 ₂₀ , 1 ₂₁ , 1 ₂₂ , 1 ₂₃ , and 1 ₂₄ provided with slits in the peripheral surface and the notch. Details of the configuration of the piece 1 _m (m = 1 to 24) are as follows.

a1. Piece 1 ₁
Figure 2 is a diagram showing a piece _{1 1.} Piece _{1 1,} the vertical width D1 (D1 = L), the lateral width W1 (W1 = L), and has a dimension in the thickness T1 (W1 = L / 20) . Piece _{1 1,} the peripheral surface 3U interposed between the main surface 2F and 2B and the main surface 2F and 2B, enclosed 3D, 3L, and 3R. The piece 1 ₁ is provided with eight slits 4UDL ₁ , 4UDR ₁ , 4DUL ₁ , 4DUR ₁ , 4LRU ₁ , 4LRD ₁ , 4RLU ₁ , and 4RLD ₁ . The slits 4UDL ₁ and 4UDR ₁ are formed by recessing the respective portions obtained by dividing the circumferential surface 3U into three equal parts in the lateral width direction on the circumferential surface 3D side. The slits 4DUL ₁ and 4DUR ₁ are obtained by denting each portion of the circumferential surface 3D into three equal parts in the lateral width direction on the circumferential surface 3U side. The slits 4LRU ₁ and 4LRD ₁ are obtained by denting each portion of the circumferential surface 3L equally divided into three in the longitudinal width direction on the circumferential surface 3R side. Slit 4RLU ₁ and 4RLD ₁ is obtained by recessing the respective locations which is divided into three equal parts in the circumferential surface 3R in the vertical width direction on the peripheral surface 3L side.

To be more specific, the slits 4UDL _1, the distance from the circumferential surface 3L of side edge in the peripheral surface 3U W2 (W2 = L × 6 /20) Distance from position spaced this position W3 (W3 = L × 1 / 20) extends to the peripheral surface 3D side with a width W3 and a length D4 (D4 = L × 3/20) from a portion between the positions separated by the distance. The slit 4UDR ₁ has a width W3 and a length D4 from the portion between the edge on the peripheral surface 3U side of the peripheral surface 3R side by a distance W2 and a position away from this position by a distance W3. Extends to the side.

The slit 4DUL ₁ has a dimension of a width W3 and a length D4 from a portion between a position separated from the edge on the circumferential surface 3L side of the circumferential surface 3D by a distance W2 and a position separated from this position by a distance W3. It extends to the surface 3U side. The slit 4DUR ₁ has a dimension of a width W3 and a length D4 from a portion between a position separated from the edge on the circumferential surface 3R side of the circumferential surface 3D by a distance W2 and a position separated from the position by a distance W3. It extends to the surface 3U side.

The slit 4LRU ₁ is positioned at a distance D2 (D2 = L × 6/20) from the edge of the peripheral surface 3L on the peripheral surface 3U side and a position away from this position by a distance D3 (D3 = L × 1/20). And extends to the peripheral surface 3R side with a width D3 and a length W4 (W4 = L × 3/20). The slit 4LRD ₁ has a dimension of a width D3 and a length W4 from a portion between a position away from the edge on the circumferential surface 3D side of the circumferential surface 3L by a distance D2 and a position away from this position by a distance D3. It extends to the surface 3R side.

The slit 4RLU ₁ has a width D3 and a length W4 from a portion between a position away from the edge on the circumferential surface 3U side of the circumferential surface 3R by a distance D2 and a position away from this position by a distance D3. It extends to the surface 3L side. Slit 4RLD ₁ is circumferential with dimensions of width D3 and length W4 from the portion between the edge position at a distance D2 from the circumferential surface 3D side position at a distance D3 from this position in the peripheral surface 3R It extends to the surface 3L side.

b1. Piece ₁ 2-1 ₄
Figure 3 is a diagram showing a piece _{1 2.} Figure 4 is a diagram showing a piece _{1 3.} Figure 5 is a diagram showing a piece _{1 4.} 3, pieces _{1 2,} the thickness T of the edge of the peripheral surface 3U and the circumferential surface 3L in pieces _{1 1} intersect, a longitudinal width D5 (D5 = L × 7/ 20), the width W5 (W5 = L × 7 / the rectangular parallelepiped portion having a dimension of 20) is obtained by cutting out by a notch 5a _2. The piece _{1 2} is, eight slits _{4UDR 2, 4DUL 2, 4DUR 2} , 4LRD 2, 4RLU 2, 4RLD 2, 4'UDL 2, and 4'LRU ₂ are provided. Position and dimensions of the slit _{4UDR 2, 4DUL 2, 4DUR 2} , 4LRD 2, 4RLU 2, 4RLD 2 are the same as those of slit _{4UDR 1, 4DUL 1, 4DUR 1} , 4LRD 1, 4RLU 1, 4RLD 1. The slit 4′UDL ₂ is formed by denting the corner portion of the notch 5a ₂ toward the circumferential surface 3D. The slit 4′LRU ₂ is formed by denting the corner portion of the notch 5a ₂ toward the circumferential surface 3R.

To be more specific, the slits 4'UDL ₂ is a dimension from the portion of the width W3 and length D4 between the position at a distance W3 from the corner and the position of the notch portion 5a ₂ on the peripheral surface 3L side And extending to the peripheral surface 3D side. The slit 4′LRU ₂ has a width D3 and a length W4 from the corner between the notch 5a ₂ and a position separated from this position by a distance D3 toward the circumferential surface 3U. It extends to.

4, Piece 1 _3, the central thickness T1, longitudinal width D5, rectangular portion size with a breadth W5 of between circumferential surfaces 3L and 3R of the peripheral surface 3U side of a rectangular parallelepiped having the same dimensions as the piece 1 ₁ is obtained by cutting out as a cut-out portion 5b ₃ a. The piece 1 ₃ is provided with eight slits 4DUL ₃ , 4DUR ₃ , 4LRD ₃ , 4RLD ₃ , 4′UDL ₃ , 4′RLU ₃ , 4′UDR ₃ , 4′LRU ₃ . The positions and dimensions of the slits 4DUL ₃ , 4DUR ₃ , 4LRD ₃ , 4RLD ₃ are the same as those of the slits 4DUL ₁ , 4DUR ₁ , 4LRD ₁ , 4RLD ₁ . The slits 4′UDL ₃ and 4′RLU ₃ are formed by denting the corners on the peripheral surface 3L side of the notch 5b ₃ to the peripheral surface 3D side and the peripheral surface 3L side. The slits 4′UDR ₃ and 4′LRU ₃ are formed by denting the corners on the peripheral surface 3R side of the notch 5b ₃ to the peripheral surface 3D side and the peripheral surface 3R side.

More specifically, the slit 4′UDL ₃ has a width W3 and a length from a portion between the corner on the peripheral surface 3L side of the notch 5b ₃ and a position separated from this position by the distance W3 on the peripheral surface 3R side. It has a dimension of D4 and extends to the peripheral surface 3D side. The slit 4′RLU ₃ has dimensions of a width D3 and a length W4 from a portion between a corner on the peripheral surface 3L side in the notch 5b ₃ and a position away from this position by a distance D3 on the peripheral surface 3U side. It extends to the peripheral surface 3L side.

The slit 4′UDR ₃ has dimensions of a width W3 and a length D4 from a portion between a corner on the peripheral surface 3R side in the notch 5b ₃ and a position separated from this position by a distance W3 on the peripheral surface 3L side. It extends to the peripheral surface 3D side. The slit 4'LRU ₃ has dimensions of a width D3 and a length W4 from a portion between a corner on the peripheral surface 3R side in the notch 5b ₃ and a position away from this position by a distance D3 on the peripheral surface 3U side. It extends over the peripheral surface 3R side.

5, piece _{1. 4} is a notched and a thickness T1 at the center of the piece 1 _1, longitudinal width D2, the rectangular parallelepiped portion having a dimension of the horizontal width W2 and notch 5e _4. The piece _{1 4,} eight slits _{4UDR 4, 4DUL 4, 4LRU 4} , 4RLD 4, 4'DUL 4, 4'LRU 4, 4'UDR 4, and 4'RLD ₄ are provided. Position and dimensions of the slit _{4UDR 4, 4DUL 4, 4LRU 4} , 4RLD 4 are the same as those of slit _{4UDR 1, 4DUL 1, 4LRU 1} , 4RLD 1. The slits 4′DUL ₄ , 4′LRU ₄ , 4′UDR ₄ , and 4′RLD ₄ are formed by recessing the _four corners of the notch 5e ₄ .

More specifically, the slit 4′DUL ₄ includes a corner on the edge side where the peripheral surface 3U and the peripheral surface 3L intersect in the notch 5e ₄ and a position separated from this position by the distance W3 toward the peripheral surface 3R. It extends to the peripheral surface 3U side with the dimension of width W3 and length D4 from the part between. The slit 4′LRU ₄ has a width D3 from a portion between a corner on the edge side where the peripheral surface 3U and the peripheral surface 3R intersect in the notch 5e ₄ and a position separated from this position by the distance D3 toward the peripheral surface 3D. And has a dimension of length W4 and extends to the peripheral surface 3R side.

The slit 4′UDR ₄ has a width W3 from a portion between a corner on the edge side where the peripheral surface 3D and the peripheral surface 3R intersect in the notch 5e ₄ and a position separated from this position by the distance W3 toward the peripheral surface 3L. And extending to the circumferential surface 3D side with a dimension of length D4. The slit 4′RLD ₄ has a width D3 from a portion between a corner on the edge side where the peripheral surface 3D and the peripheral surface 3L intersect in the notch 5e ₄ and a position away from this position by the distance D3 toward the peripheral surface 3U. And extending to the circumferential surface 3L side with a length W4.

c1. Piece _{1 5-1 11}
Figure 6 is a diagram showing a piece _{1 5.} FIG. 7 is a view showing the piece ₁₆ . FIG. 8 is a view showing the piece ₁₇ . FIG. 9 is a view showing the piece ₁₈ . FIG. 10 is a view showing the piece ₁₉ . Figure 11 is a diagram showing a piece _{1 10.} Figure 12 is a diagram showing a piece _{1 11.}

6, piece _{1 5} outright as a notch 5a ₂ (FIG. 3) and the notch 5b ₃ (FIG. 4) notch 5ab ₅ the same parts as those connecting the at cuboid piece _{1 1} and the same dimension missing It was. The piece ₁₅ is provided with seven slits 4DUL ₅ , 4DUR ₅ , 4LRD ₅ , 4RLD ₅ , 4′UDL ₅ , 4′UDR ₅ , 4′LRU ₅ . Position and size of the slits _{4DUL 5, 4DUR 5, 4LRD 5} , 4RLD 5 are the same as those of slit _{4DUL 1, 4DUR 1, 4LRD 1} , 4RLD 1. Slit 4'UDL _5, 4'UDR _5, the position and dimensions of 4'LRU ₅ is slit 4'UDL ₃ (FIG. 3), 4'UDR ₃ (FIG. 3), and that of 4'LRU ₃ (FIG. 3) The same.

7, pieces _{1 6,} piece _{1 1} and outright as a notch 5b ₂ (FIG. 4) and a notch 5e ₄ (FIG. 5) notch 5Be ₆ the same parts as those connecting the at cuboid same size missing It was. The piece ₁₆ is provided with six slits 4DUL ₆ , 4LRU ₆ , 4RLD ₆ , 4′LRU ₆ , 4′RLD ₆ , and 4′UDL ₆ . The positions and dimensions of the slits 4DUL ₆ , 4LRU ₆ , 4RLD ₆ are the same as those of the slits 4DUL ₁ , 4LRU ₁ , 4RLD ₁ . The positions and dimensions of the slits 4′LRU ₆ , 4′RLD ₆ , 4′UDL ₆ are the same as those of the slit 4′LRU ₆ (FIG. 5), 4′RLD ₆ (FIG. 5), and 4′UDL ₆ (FIG. 5). The same.

8, pieces _{1 7} outright as a notch 5a ₂ (FIG. 3) and the notch 5e ₄ (FIG. 5) notch 5ae ₇ the same parts as those connecting the at cuboid piece _{1 1} and the same dimension missing It was. Piece ₁ six slits 4UDR ₇ to _{7, 4DUL 7, 4RLD 7,} 4'LRU 7, 4'UDR 7, and 4'RLD ₇ is provided. Position and dimensions of the slit 4UDR _7, 4DUL _7, 4RLD ₇ are the same as those of slit _{4UDR 1, 4DUL 1, 4RLD 1} . The positions and dimensions of the slits 4′LRU ₇ , 4′UDR ₇ , and 4′RLD ₇ are the same as those of the slits 4′LRU ₄ (FIG. 8), 4′UDR ₄ (FIG. 8), and 4′RLD ₄ (FIG. 8). Is the same.

9, pieces 1 _8, notches and the notch 5a 2 notch 5a ₈ the same part _(FIG. 3) in the rectangular piece 1 ₁ and the same dimension, the edge peripheral surface 3U and the circumferential surface 3R intersects thickness at the side T1, longitudinal width D2, in which the dimensions have been part of the lateral width W2 was notched by the notch 5c _9. The piece ₁₈ is provided with seven slits 4DUL ₈ , 4DUR ₈ , 4LRD ₈ , 4RLD ₈ , 4′UDL ₈ , 4′LRU ₈ , and 4′UDR ₈ . The positions and dimensions of the slits 4DUL ₈ , 4DUR ₈ , 4LRD ₈ , 4RLD ₈ are the same as those of the slits 4DUL ₁ , 4DUR ₁ , 4LRD ₁ , 4RLD ₁ . Slit 4'UDL _8, 4'LRU _8, and the position and dimensions of 4'UDR ₈ slits 4'UDL ₂ (FIG. 3), 4'LRU ₂ (FIG. 3), and 4'UDR ₃ (FIG. 4) Is the same.

10, pieces _{1 9,} notches and the notch 5a ₂ (FIG. 3) of the same parts as notch 5a ₉ in rectangular piece _{1 1} and the same dimension, of the peripheral surface 3R side peripheral surface 3U and between 3D central thickness T1, longitudinal width D2, in which the dimensions have been part of the lateral width W2 was notched by the notch 5f _9. Piece _{1 9} The seven slits _{4UDR 9, 4DUL 9, 4DUR 9} , 4LRD 9, 4'UDL 9, 4'RLU 9, and 4'RLD ₉ are provided. Position and dimensions of the slit _{4UDR 9, 4DUL 9, 4DUR 9} , 4LRD 9 is the same as the slit _{4UDR 1, 4DUL 1, 4DUR 1} , 4LRD 1. The position and dimensions of the slit 4′UDL ₉ are the same as those of the slit 4′UDL ₁ (FIG. 3).

The slit 4′RLU ₉ has dimensions of a width D3 and a length W4 from a portion between the corner on the peripheral surface 3U side in the notch 5f ₉ and a position away from this position by a distance D3 on the peripheral surface 3D side. It extends to the peripheral surface 3L side. The slit 4'RLD ₉ has dimensions of a width D3 and a length W4 from a portion between the corner on the peripheral surface 3D side of the notch 5f ₉ and a position away from this position by a distance D3 on the peripheral surface 3U side. It extends to the peripheral surface 3L side.

11, pieces _{1 10,} notches and the notch 5a ₂ (FIG. 3) of the same parts as notch _{5a 10} in a rectangular parallelepiped piece _{1 1} and the same dimension, the edge periphery 3D and peripheral surface 3R intersects thickness at the side T1, longitudinal width D2, in which the dimensions have been part of the lateral width W2 was notched by the notch 5i _10. Eight slits _4UDR 10 in pieces _{1 10, 4DUL 10, 4LRD 10} , 4RLU 10, 4'UDL 10, 4'LRU 10, 4'DUR 10, and 4'RLD ₁₀ are provided. Position and dimensions of the slit _{4UDR 10, 4DUL 10, 4LRD 10} , 4RLU 10 is the same as that of the slit _{4UDR 1, 4DUL 1, 4LRD 1} , 4RLU 1. The positions and dimensions of the slits 4′UDL ₁₀ and 4′LRU ₁₀ are the same as those of the slits 4′UDL (FIG. 3) ₂ and 4′LRU ₂ (FIG. 3).

The slit 4′DUR ₁₀ has a width W3 and a length D4 from the portion between the corner of the notch 5i ₁₀ and a position away from this position by the distance W3 toward the circumferential surface 3R. It is extended. Slit 4'RLD ₁₀ is in the corner and the portion has a width dimension D3 and length W4 from the circumferential surface 3L side between this position and the distance D3 apart locations on the peripheral surface 3D side of the notch 5i ₁₀ It is extended.

12, pieces _{1 11,} notches and the notch 5b ₃ (FIG. 4) of the same parts as notch _{5b 11} of a rectangular parallelepiped piece _{1 1} and the same dimensions, circumferential surface 3L and peripheral surface 3U side of the cuboid central thickness between the 3R T1, longitudinal width D2, in which the dimensions have been part of the lateral width W2 was notched with a notch 5h _11. The piece 1 ₁₁ is provided with eight slits 4LRU ₁₁ , 4RLD ₁₁ , 4′UDL ₁₁ , 4′LRU ₁₁ , 4′DUR ₁₁ , and 4′RLD ₁₁ . The positions and dimensions of the slits 4LRU ₁₁ and 4RLD ₁₁ are the same as those of the slits 4LRU ₁ and 4RLD ₁ . The positions and dimensions of the slits 4′UDL ₁₁ , 4′LRU ₁₁ , 4′DUR ₁₁ are the same as those of the slits 4′UDL ₂ (FIG. 3), 4′LRU ₃ (FIG. 4), and 4′DUR ₁₀ (FIG. 11). The same.

Slit 4'RLD ₁₁ may have a width dimension D3 and length W4 from the portion between the corner and the position at a distance D3 from this position on the peripheral surface 3D side of the circumferential surface 3L side of cutout portion 5h ₁₁ It extends to the peripheral surface 3L side.

c1. Pieces 1 ₁₂ to 1 ₁₈
Figure 13 is a diagram showing a piece _{1 12.} Figure 14 is a diagram showing a piece _{1 13.} Figure 15 is a diagram showing a piece _{1 14.} Figure 16 is a diagram showing a piece _{1 15.} Figure 17 is a diagram showing a piece _{1 16.} Figure 18 is a diagram showing a piece _{1 17.} Figure 19 is a diagram showing a piece _{1 18.}

13, pieces _{1 12,} piece _{1 1} and the notch 5ab ₅ of rectangular parallelepiped of the same size (Fig. 6) and the peripheral surface 3L side of the circumferential surface 3U and the central thickness between the 3D T1, longitudinal width D2, the width W2 the same parts as those connecting a portion having a dimension is obtained notched as the notched portion 5abd _12. The piece 1 is provided with six slits 4DUR ₁₂ , 4RLD ₁₂ , 4′UDR ₁₂ , 4′LRU ₁₂ , 4′UDL ₁₂ , and 4′LRD ₁₂ . The positions and dimensions of the slits 4DUR ₁₂ and 4RLD ₁₂ are the same as those of the slits 4DUR ₁ and 4RLD ₁ . The positions and dimensions of the slits 4′UDR ₁₂ and 4′LRU ₁₂ are the same as those of the slits 4′UDR ₃ (FIG. 4) and 4′LRU ₃ (FIG. 4).

The slit 4′UDL ₁₂ has a width W3 and a length D4 from the corner between the notch 5abd ₁₂ and a position separated by a distance W3 from this position to the circumferential surface 3L. It is extended. The slit 4'LRD ₁₂ has a width D3 and a length W4 from the portion between the corner of the notch 5abd ₁₂ and a position away from this position by a distance D3 toward the circumferential surface 3U. It is extended.

In FIG. 14, the piece 1 ₁₃ is a notch ₅ ab ₁₃ , which is the same part as the notch ₅ ab ₅ (FIG. 6) and the notch 5 e ₄ (FIG. 5) in a rectangular parallelepiped having the same dimensions as the piece 1 ₁ . It was. The piece 1 ₁₃ is provided with five slits 4DUL ₁₃ , 4RLD ₁₃ , 4′LRU ₁₃ , 4′UDR ₁₃ , and 4′RLU ₁₃ . The positions and dimensions of the slits 4DUL ₁₃ and 4RLD ₁₃ are the same as those of the slits 4DUL ₁ and 4RLD ₁ . The positions and dimensions of the slits 4′LRU ₁₃ , 4′UDR ₁₃ , and 4′RLU ₁₃ are the same as those of the slits 4′LRU ₄ (FIG. 5), 4′UDR ₄ (FIG. 5), and 4′RLU ₄ (FIG. 5). Is the same.

15, pieces _{1 14,} the notch 5ab ₅ notch to the same portion (FIG. 6) and a notch _{5ab 14,} the peripheral surface 3D and peripheral surface 3R of the rectangular in the rectangular piece _{1 1} and the same dimensions the thickness of the side edges intersecting T1, longitudinal width D2, in which the dimensions have been part of the lateral width W2 was notched by the notch 5i _14. The piece 1 ₁₄ is provided with six slits 4DUL ₁₄ , 4LRD ₁₄ , 4RLU ₁₄ , 4′UDL ₁₄ , 4′UDR ₁₄ , and 4′RLD ₁₄ . The positions and dimensions of the slits 4DUL ₁₄ , 4LRD ₁₄ , 4RLU ₁₄ are the same as those of the slits 4DUL ₁ , 4LRD ₁ , 4RLU ₁ . The positions and dimensions of the slits 4′UDL ₁₄ , 4′UDR ₁₄ , and 4′RLD ₁₄ are the same as those of the slits 4′UDL ₃ (FIG. 4), 4′UDR ₃ (FIG. 4), and 4′RLD ₉ (FIG. 10). Is the same.

16, pieces _{1 15,} piece _{1 1} and the notch 55Ab ₅ of rectangular parallelepiped of the same size notch in the notch _{5ab 15} the same part (Fig. 6), the peripheral surface 3L and circumference 3D side of the cuboid central thickness between the 3R T1, longitudinal width D2, in which the dimensions have been part of the lateral width W2 was notched with a notch 5h _15. The piece 1 ₁₅ is provided with five slits 4LRD ₁₅ , 4RLU ₁₅ , 4′UDR ₁₅ , 4′LRD ₁₅ , and 4′DUL ₁₅ . The positions and dimensions of the slits 4LRD ₁₅ and 4RLU ₁₅ are the same as those of the slits 4LRD ₁ and 4RLU ₁ . The position and dimensions of the slit 4′UDR ₁₅ are the same as those of the slit 4′UDR ₃ (FIG. 4).

The slit 4′LRD ₁₅ has dimensions of a width D3 and a length W4 from a portion between the corner on the peripheral surface 3R side in the notch 5h ₁₅ and a position away from this position by the distance D3 on the peripheral surface 3D side. It extends to the peripheral surface 3R side. The slit 4'DUL ₁₅ has dimensions of a width W3 and a length D4 from a portion between a corner on the peripheral surface 3L side in the notch 5h ₁₅ and a position away from this position by a distance W3 on the peripheral surface 3R side. It extends to the peripheral surface 3U side.

17, pieces _{1 16,} notches and the notch 5ab ₅ (FIG. 6) to the same parts as the notch _{5ab 16} in rectangular piece _{1 1} and the same dimensions, circumferential surface 3D and peripheral surface 3L in the rectangular cross side thickness T1 of the edge of the vertical width D2, in which the dimensions have been part of the lateral width W2 was notched by the notch 5 g _16. The piece 1 ₁₆ is provided with six slits 4DUR ₁₆ , 4RLU ₁₆ , 4RLD ₁₆ , 4′UDL ₁₆ , 4′UDR ₁₆ , and 4′LRD ₁₆ . The positions and dimensions of the slits 4DUR ₁₆ , 4RLU ₁₆ , 4RLD ₁₆ are the same as those of the slits 4DUR ₁ , 4RLU ₁ , 4RLD ₁ . The positions and dimensions of the slits 4′UDL ₁₆ and 4′UDR ₁₆ are the same as those of the slits 4′UDL ₃ (FIG. 4) and 4′UDR ₃ (FIG. 4).

The slit 4′LRD ₁₆ has a width D3 and a length W4 from the portion between the corner of the notch 5g ₁₆ and a position away from this position by the distance D3 toward the peripheral surface 3D. It is extended.

In FIG. 18, the piece 1 ₁₇ is cut out with the same portion as the cutout portion 5 a ₂ (FIG. 3) in the rectangular parallelepiped having the same dimensions as the piece 1 ₁ as the cutout portion 5 a ₁₇ , and the same portion as the cutout portion 5 c ₈ (FIG. 9). notch and the notch _{5c 17,} notch _{5i 14} is obtained notched by the same part (Fig. 15) and the notch _{5i 17.} The piece 1 ₁₇ is provided with six slits 4DUL ₁₇ , 4LRD ₁₇ , 4′UDL ₁₇ , 4′LRU ₁₇ , 4′UDL ₁₇ , and 4′RLD ₁₇ . The positions and dimensions of the slits 4DUL ₁₇ and 4LRD ₁₇ are the same as those of the slits 4DUL ₁ and 4LRD ₁ . The positions and dimensions of the slits 4′UDL ₁₇ , 4′LRU ₁₇ , 4′UDL ₁₇ , 4′RLD ₁₇ are slit 4′UDL ₂ (FIG. 3), 4′LRU ₂ (FIG. 3), 4′UDL ₃ (FIG. 4) Same as 4′UDL ₁₇ (FIG. 10).

In FIG. 19, the piece 1 ₁₈ is cut out with the same portion as the cutout portion 5 a ₂ (FIG. 3) in the rectangular parallelepiped having the same dimensions as the piece 1 ₁ as the cutout portion 5 a ₁₈ , and the same portion as the cutout portion 5 c ₈ (FIG. 9). The cutout portion 5c ₁₈ is cut out, and the same portion as the cutout portion 5h ₁₅ (FIG. 16) is cut out as the cutout portion 5h ₁₈ . The piece 1 ₁₈ is provided with six slits 4LRD ₁₈ , 4′LRU ₁₈ , 4′UDL ₁₈ , 4′LRD ₁₈ , and 4′DUL ₁₈ . The position and dimensions of the slit 4LRD ₁₈ are the same as those of the slit 4LRD ₁ . The positions and dimensions of the slits 4′LRU ₁₈ , 4′UDL ₁₈ , 4′LRD ₁₈ , and 4′DUL ₁₈ are slit 4′LRU ₂ (FIG. 3), 4′UDL ₁₅ (FIG. 16), 4′LRD ₁₅ ( FIG. 16) and 4′DUL ₁₅ (FIG. 16).

d1. Piece ₁ 19 _{to 1 24}
Figure 20 is a diagram showing a piece _{1 19.} Figure 21 is a diagram showing a piece _{1 20.} Figure 22 is a diagram showing a piece _{1 21.} Figure 23 is a diagram showing a piece _{1 22.} Figure 24 is a diagram showing a piece _{11 23.} Figure 25 is a diagram showing a piece _{1 24.}

In Figure 20, pieces _{1 19,} piece _{1 1} and the notch 5b ₃ of rectangular parallelepiped of the same size (Fig. 4), the notch portion 5c ₈ (FIG. 9), the notch portion 5e ₄ (FIG. 5), notch _5f 9 ( Figure 10) in which the same parts were notched with a notch 5Bcef ₄ as that connecting the. The piece 1 ₁₉ is provided with four slits 4DUL ₁₉ , 4LRU ₁₉ , 4′UDR ₁₉ , and 4′RLD ₁₉ . The positions and dimensions of the slits 4DUL ₁₉ and 4LRU ₁₉ are the same as those of the slits 4DUL ₁ and 4LRU ₁ . Position and dimensions of the slit 4'UDR _19, and 4'RLD ₁₉ is slit 4'UDR ₄ (FIG. 5), and 4'RLD ₄ (FIG. 5) is the same as that of the.

In Figure 21, pieces _{1 20,} piece _{1 1} and the notch 5b ₃ of rectangular parallelepiped of the same size (Fig. 4), the notch portion 5c ₈ (FIG. 9), the same as that connecting the cutout portion 5f ₉ (FIG. 10) notch and a portion with notch 5bcf _20, is obtained notched by the same portion as the cut-out portions _{5 g 16} (FIG. 17) in the rectangular parallelepiped with cut-out portions _{5 g 20.} Four slits 4'RLU ₂₀ in piece _{1 20, 4'UDR 20, 4'DUL 20} , and 4'LRD ₂₀ are provided. The positions and dimensions of the slits 4′RLU ₂₀ , 4′UDR ₂₀ , 4′DUL ₂₀ , and 4′LRD ₂₀ are slit 4′RLU ₃ (FIG. 4), 4′UDR ₁₃ (FIG. 14), and 4′DUL ₁₅ ( FIG. 16) and 4′LRD ₁₆ (FIG. 17).

In Figure 22, pieces _{1 21,} notches in the piece _{1 1} and the notch 5b ₃ of rectangular parallelepiped of the same size (Fig. 4) and the notch 5c ₈ (FIG. 9) notch _{5bc 21} the same parts as those connecting the In this rectangular parallelepiped, the same part as that obtained by connecting the notch part 5g ₁₆ (FIG. 17) and the notch part 5h ₁₁ (FIG. 12) is notched using the notch part 5gh ₂₁ . The piece 1 ₂₁ is provided with four slits 4LRU ₂₁ , 4RLD ₂₁ , 4′UDL ₂₁ , and 4′DUR ₂₁ . The positions and dimensions of the slits 4LRU ₂₁ and 4RLD ₂₁ are the same as those of the slits 4LRU ₁ and 4RLD ₁ . The positions and dimensions of the slits 4′UDL ₂₁ and 4′DUR ₂₁ are the same as those of the slits 4′UDL ₂ (FIG. 3) and 4′DUR ₁₀ (FIG. 22).

23, pieces _{1 22,} piece _{1 1} and the notch _{5bc 21} notch to the same part (Fig. 22) and the notch _{5bc 22} in a rectangular parallelepiped of the same size, notch _{5h 11} in the rectangular solid (Figure 12) notch _{5i 10} is obtained by notching in the same portion as that connecting (FIG. 11) and the notch _{5hi 22.} The piece 1 ₂₂ is provided with four slits 4LRD ₂₂ , 4′RLU ₂₂ , 4′UDL ₂₂ , and 4′DUL ₂₂ . The position and dimensions of the slit 4LRD ₂₂ are the same as those of the slit 4LRD ₁ . The positions and dimensions of the slits 4′RLU ₂₂ , 4′UDL ₂₂ , and 4′DUL ₂₂ are those of the slits 4′RLU ₃ (FIG. 4), 4′UDL ₃ (FIG. 4), and 4′DUL ₁₅ (FIG. 16). Is the same.

In Figure 24, pieces _{1 23,} notches and the notch _{5bc 21} (FIG. 22) the same part as the notch _{5bc 23} in rectangular piece _{1 1} and the same dimensions, the notch _{5 g 16} (FIG. 17) in this rectangular notch and the same parts as notch _{5 g 23,} is obtained notched by the same portion as the notch _{5i 14} in the rectangular parallelepiped (15) and the notch _{5i 23.} Piece 1 ₂₃ is provided with four slits 4′UDL ₂₃ , 4′RLU ₂₃ , 4′DUL ₂₃ , and 4′LRD ₂₃ . The positions and dimensions of the slits 4'UDL ₂₃ , 4'RLU ₂₃ , 4'DUL ₂₃ , and 4'LRD ₂₃ are as follows: slit 4'UDL ₄ (FIG. 5), 4'RLU ₄ (FIG. 5), 4'DUL ₁₀ ( 11) and 4′LRD ₁₂ (FIG. 13).

In Figure 25, pieces _{1 24,} notches and the notch 5a ₂ notch _{5a 24} the same parts as (3) in the rectangular piece _{1 1} and the same dimensions, the notch 5c ₈ (FIG. 9) in the rectangular notch and the same parts as notch _{5c 24,} notches and the notch _{5 g 16} (FIG. 17) the same partial cutaway and section _{5 g 24} in the rectangular cutout the same parts as notch _{5i 10} in the rectangular solid (Figure 11) The portion 5i ₂₄ is cut out. The piece 1 ₂₄ is provided with four slits 4′LRU ₂₄ , 4′UDR ₂₄ , 4′RLD ₂₄ , and 4′DUL ₂₄ . The positions and dimensions of the slits 4′LRU ₂₄ , 4′UDR ₂₄ , 4′RLD ₂₄ , and 4′DUL ₂₄ are slit 4′LRU ₂ (FIG. 3), 4′UDR ₃ (FIG. 4), and 4′RLD ₉ ( FIG. 10) and 4′DUL ₁₅ (FIG. 16).

The above is the details of the configuration of the piece 1 _m (m = 1 to 24). In the present embodiment, pieces ₁ m (m = _1~24) in a certain piece _{1 m} major surface 2F and 2B and a separate piece _{1 m} major surface 2F and 2B of by orthogonal their pieces _{1 m} of the A three-dimensional model is formed by repeating the operation of fitting the slits 4 together. 26 through 49 are diagrams showing an assembling example of the pieces ₁ m (m = _1~24).

The assembly procedure of the piece 1 _m (m = 1 to 24) in this assembly example will be described. First, the piece 1 ₁ and the piece 1 ₁₃ are oriented so that the principal surfaces 2F (and 2B) thereof are orthogonal to each other. fitting ₁ of the slit 4'UDR ₁ slit 4RLU ₁ and piece _{1 13} (Figure 26).

Next, the piece 1 ₁₃ and the piece 1 ₁₅ of the assembly AS1 in which the piece 1 ₁ and the piece 1 ₁₃ are connected are oriented so that the principal surfaces 2F (and 2B) thereof are orthogonal to each other, and the slit 4DUL ₁₃ of the piece 1 ₁₃ and the piece 1 1 ₁₅ slits 4′LRD ₁₅ are fitted (FIG. 27).

Then, the direction in which the piece _{1 13} and the piece _{1 18} of the assembly AS2 linked pieces _{1 15} the assembly AS1 main surface 2F (and 2B) between the two orthogonal slits 4'RLD ₁₃ pieces _{1 13} And the slit 4′LRD ₁₈ of the piece 1 ₁₈ are fitted (FIG. 28).

Then, the direction in which the piece _{1 18} and piece _{1 14} of the assembly AS3 linked pieces _{1 18} the assembly AS2 main surface 2F (and 2B) between the two orthogonal slits 4'LRU ₁₃ pieces _{1 18} and fitting the slit 4'RLD ₁₄ pieces _{1 14} (Figure 29).

Then, the direction in which the piece _{1 14} and the piece _{1 12} of the assembly AS4 linked pieces _{1 14} the assembly AS3 main surface 2F (and 2B) between the two orthogonal slits 4'UDL ₁₄ pieces _{1 14} And the slit 4′LRD ₁₂ of the piece 1 ₁₂ is fitted (FIG. 30).

Next, the piece _{1 18} and piece _{1 5} assembly AS5 linked pieces _{1 12} to the assembly AS4 and orient the main surface 2F (and 2B) between the two orthogonal slits 4LRD ₁₈ and pieces of piece _{1 18 15} slits 4RLD ₅ are fitted (FIG. 31).

Then, the direction in which the pieces _{1 5} and piece _{1 16} of the assembly AS6 linked pieces _{1 5} the assembly AS5 main surface 2F (and 2B) between the two orthogonal slits 4'LRU ₅ pieces _{1 5} And the slit 4RLU ₁₆ of the piece 1 ₁₆ are fitted (FIG. 32).

Then, the direction in which the pieces _{1 5} and piece _{1 6} assembly AS7 linked pieces _{1 16} the assembly AS6 main surface 2F (and 2B) between the two orthogonal pieces _{1 5} slit 4DUL ₅ and piece fitting the slit 4'LRU ₆ 1 ₆ (FIG. 33).

Then, the direction in which the pieces _{1 5} and piece _{1 24} of the assembly AS8 linked pieces _{1 6} the assembly AS7 main surface 2F (and 2B) between the two orthogonal pieces _{1 5} slit 4LRD ₅ and piece 1 ₂₄ The slit 4'LRU ₂₄ is fitted (FIG. 34).

Then, the direction in which the piece _{1 24} and piece _{1 2} assembly AS9 linked pieces _{1 24} the assembly AS8 main surface 2F (and 2B) between the two orthogonal slits 4'RLD ₂₄ pieces _{1 24} and fitting the slit 4UDR ₂ pieces _{1 2} (Figure 35).

Then, the direction in which the pieces _{1 2} and piece _{1 8} assembly AS10 linked pieces _{1 2} the assembly AS9 main surface 2F (and 2B) between the two orthogonal pieces _{1 2} slit 4'LRU ₂ and fitting the slit 4DUR ₈ pieces _{1 8} (FIG. 36).

Then, the direction in which the pieces _{1 8} and piece _{1 22} of the assembly AS11 linked pieces _{1 8} the assembly AS10 main surface 2F (and 2B) between the two orthogonal slits 4'LRU ₈ pieces _{1 8} And the slit 4′UDR ₂₂ of the piece 1 ₂₂ are fitted (FIG. 37).

Then, the direction in which the piece _{1 22} and piece _{1 10} of the assembly AS12 linked pieces _{1 22} the assembly AS11 main surface 2F (and 2B) between the two orthogonal slits 4'DUL ₂₂ pieces _{1 22} and fitting the slit 4'RLD ₁₀ pieces _{1 10} (Figure 38).

Next, the piece _{1 10} and the piece _{1 9} assembly AS13 linked pieces _{1 10} to the assembly AS12 and in the direction of main surface 2F (and 2B) between the two orthogonal slits 4'UDL ₁₀ pieces _{1 10} and fitting the slit 4LRD ₉ pieces _{1 9} (Fig. 39).

Then, the direction in which the pieces _{1 9} and piece _{1 23} of the assembly AS14 linked pieces _{1 9} the assembly AS13 main surface 2F (and 2B) between the two orthogonal slits 4UDR ₉ and piece piece _{1 9} fitting the slit 4'RLU ₂₃ 1 ₂₃ (Figure 40).

Then, the direction in which the piece _{1 23} and piece _{1 17} of the assembly AS15 linked pieces _{1 23} the assembly AS14 main surface 2F (and 2B) between the two orthogonal slits 4'LRD ₂₃ pieces _{1 23} And the slit 4′LRU ₁₇ of the piece 1 ₁₇ is fitted (FIG. 41).

Next, the piece _{1 17} and piece _{1 4} assembly AS16 linked pieces _{1 17} to the assembly AS15 and in the direction of main surface 2F (and 2B) between the two orthogonal slits 4LRD ₁₇ and pieces of piece _{1 17} fitting the 1 ₄ slit 4RLD ₄ (Figure 42).

Next, the piece _{1 17} and piece _{1 3} assembly AS17 linked pieces _{1 4} the assembly AS16 and in the direction of main surface 2F (and 2B) between the two orthogonal slits 4DUL ₁₇ and pieces of piece _{1 17} fitting the 1 ₃ slit 4'UDL ₃ (Figure 43).

Then, the direction in which the pieces _{1 4} and piece _{1 19} of the assembly AS18 linked pieces _{1 3} the assembly AS17 main surface 2F (and 2B) between the two orthogonal pieces _{1 4} slits 4DUL ₄ and pieces 1 ₁₉ The slit 4'RLD ₁₉ of ₁₉ is fitted (FIG. 44).

Then, the direction in which the pieces _{1 4} and piece _{1 21} of the assembly AS19 linked pieces _{1 19} the assembly AS18 main surface 2F (and 2B) between the two orthogonal pieces _{1 4} slits 4LRU ₄ and pieces The slit 4LRU _{21 of} 1 ₂₁ is fitted (FIG. 45).

Then, the direction in which the piece _{1 19} and piece _{1 7} assembly AS20 linked pieces _{1 7} the assembly AS19 main surface 2F (and 2B) between the two orthogonal slits 4LRU ₁₉ and pieces of piece _{1 19} fitting the slit 4'LRU ₇ 1 ₇ (Figure 46).

Then, the direction in which the pieces _{1 7} and piece _{1 20} of the assembly AS21 linked pieces _{1 7} the assembly AS20 main surface 2F (and 2B) between the two orthogonal slits 4RLD ₇ and pieces of piece _{1 7} 1 ₂₀ The slit 4′UDR ₂₀ of ₂₀ is fitted (FIG. 47).

Then, the direction in which the piece _{1 21} and the piece _{1 11} of the assembly AS22 linked piece _{1 20} the assembly AS21 main surface 2F (and 2B) between the two orthogonal slits 4'DUR ₂₁ pieces _{1 21} And the slit 4′DUR ₁₁ of the piece 1 ₁₁ is fitted (FIG. 48).

By combining the 24 pieces 1 _m by the above-described procedure, the assembly SA23, which is a modeled object having an N shape, is completed (FIG. 49).

The above is the details of the configuration of the present embodiment. According to this embodiment, the following effects can be obtained.
1stly, the educational toy in this embodiment has 9 divisions which divided the main surfaces 2F and 2B in the rectangular parallelepiped which makes the two main surfaces 2F and 2B which oppose the square which makes 4 sides predetermined length L in the thickness direction into nine parts of 24 kinds of pieces ₁ m (m = _1~24) having a shape formed by cutting one partition to 4 partitions of. A slit extending in a direction parallel to any one of the four sides of each of the main surfaces 2F and 2B is provided in the peripheral surface and the cutout of each of the 24 types of pieces _m . In the present embodiment, by combining 24 kinds of pieces 1 _m (m = 1 to 24) having such different shapes, it is impossible to realize a modeling by stacking or combining a plurality of pieces having a single shape. It is possible to realize various and complicated three-dimensional and spatial modeling. Further, in the present embodiment, as shown in FIG. 50, the slits of the pieces 1 _m are fitted with the horizontal pieces 1 _m → the vertical pieces 1 _m → the horizontal pieces 1 _m alternately in the direction. Pieces 1 _m may be connected while changing, or as shown in FIG. 51, one piece 1 _m (piece 1 _{2 in} the example of FIG. Different pieces 1 _m may be connected in any way, or as shown in FIG. 52, a plurality of pieces 1 _m may be connected in the vertical direction. The degree of freedom is extremely high. Therefore, according to this embodiment, a child's creativity can be effectively nurtured.

Secondly, in the present embodiment, each of the 24 types of pieces 1 _m (m = 1 to 24) has a basic shape of a rectangular parallelepiped with the main surfaces 2F and 2B being square, and the main surface 2F in this rectangular parallelepiped. And 2B is divided into 9 parts, and any one of 9 sections is cut out. Here, a square is more difficult to project a specific image than other geometric shapes such as a circle and a triangle. This means that the square is a shape that can easily project various images. Moreover, the specific things in familiar natural and social projected abstract piece 1 _m, to reproduce the events by combining them, at the same time as the aesthetic creativity of thinking of abstraction and concrete It leads to upbringing. In the present embodiment, since the 24 pieces 1 _m major surface 2F and 2B of is in the form of cut away this or square, children, easily creative force in machine tools using educational toys. In addition, since it is based on a square and is made up of a series of shapes created by cutting out a part that is divided into 9 parts, the shape, size, number, quantity, etc. of pieces 1 _m based on these principles are compared.・ Formation of basic thinking ability is possible through activities such as contrast, analogy, and classification.

Third, in the present embodiment, have become all shape of the slit piece 1 _m is the same, "slit the piece 1 _m is fitted in the slit of the piece 1 _m" such assembly constraints not at all. For this reason, every time a child uses an educational toy, the child starts assembling the piece 1 _m without having a concrete image of what shape will be the final completed shape. When the assembly AS combining 1 _m is completed, a concrete image of the completed form is projected onto the assembly AS, and the user can have an experience of continuing the work so that the image becomes a shape. For example, the assembly example of the appended FIGS. 26 49, which eventually becomes the N-shape of the shaped product, not necessarily start assembled image to become the first to this shape, piece 1 _m Each time one is added, as a result of exploring and discovering the possibilities of various combinations, a model that can project an N-shaped image is created. This is an act that is the opposite of seeking a complete answer in advance, and seeking the only answer to it, spreading thoughts in children (diffusing and expanding various ideas from existing information, new things This is an extremely effective act for nurturing (thinking). Here, refer to Non-Patent Document 1 for this diffusion thinking. Further, in the present embodiment, while a combination of the same piece 1 _m, each time making, can lead to a variety of final form. Through these games, you can cultivate the way of thinking and thinking of various possibilities. For this reason, according to this embodiment, the ability to expand and think about a child's things can be nurtured effectively.

Fourth, in the present embodiment, a plurality of types of plate-like piece 1 is piece 1 _m major surface 2F and 2B and a separate piece 1 _m pieces of them the main surface 2F and 2B are perpendicular to the in _m By repeating the operation of fitting the 1 _m slits, a three-dimensional and spatially shaped object is formed. Therefore, in the present embodiment, it is rectangular space surrounded by the main surfaces 2F and 2B in the shaped article assembled pieces 1 _m. Here, it is also possible to grasp the configuration of a solid internal space that cannot be grasped by conventional blocks or blocks. Through this assembly and by observing the inside and outside of the finished model, you can understand and recognize the state and relationship that the object occupies in the three-dimensional space, such as the position, direction, orientation, size, shape, and spacing of the object. It also leads to the development of spatial recognition ability. In other words, it is possible to grasp through “play” the “mechanism of things” such as “how things are made”. Such creation of a three-dimensional object having a space inside is said to be useful for cultivating the ability to grasp things from various viewpoints instead of a single viewpoint, and the ability to think about things logically. Therefore, according to the present embodiment, it is possible to effectively cultivate the ability to grasp things from various perspectives and logically through the work using the educational toys.

Fifth, in the present embodiment, the thickness of the piece ₁ m (m = _1~24) of the width of the slit and the piece ₁ m (m = _1~24) are the same. Therefore, the two pieces 1 _m in the shaped object in a case of connecting the slits, it is possible to firmly connect the two pieces 1 _m.

Sixth, in the present embodiment, the slit piece ₁ m (m = _1~24) is adapted to the length of half of the piece _{1 primary} face 2F and 2B 9 divided 9 compartment side. Thus, two pieces 1 _m supra in FIG. 50 in the shaped object, FIG. 51, even when connected in the manner of Figure 51 the throat, the peripheral surface of the two connected pieces 1 _m is flush. For this reason, assembling becomes easier as compared with a slit having a longer or shorter length.

As mentioned above, although one Embodiment of this invention was described, you may add the following modifications to this embodiment.
(1) In the above embodiment, a semicircular recess may be provided in the bottom portion of the slit.
(2) The material of the piece 1 _{m in} the above embodiment may be wood or resin.
(3) In the above embodiment, the type of piece 1 _m in educational toys were 24 kinds. However, the number of pieces 1 _m may be less than 24 types.
(4) the length of the slits in the embodiment was 6/20 of one side of the main surface 2F and 2B pieces _{1 m.} However, it may be shortened to the length of the slit may be longer than 6/20 of one side of the main surface 2F and 2B pieces 1 _m.

DESCRIPTION OF SYMBOLS 1 ... Piece, 2 ... Main surface, 3 ... Circumferential surface, 4 ... Slit, 5 ... Notch part.

Claims (3)

Each has a shape in which one section to four sections are cut out of nine sections obtained by dividing the two main surfaces into nine in a rectangular parallelepiped having squares having four sides of a predetermined length L in the thickness direction. A plurality of types of pieces having a plurality of types of pieces provided with slits extending in a direction parallel to any of the four sides of the two main surfaces in the peripheral surface and the cutout of the pieces;
The three-dimensional structure is formed by repeating the operation of making the two principal surfaces of one piece of the plurality of types of pieces orthogonal to the two principal surfaces of another piece and fitting the slits of those pieces together. An educational toy characterized in that it is configured as follows. One type in which a slit extending in a direction parallel to any of the four sides of the two principal surfaces is provided on the peripheral surface of a rectangular parallelepiped having squares having four sides of a predetermined length L in the thickness direction. The piece of the
A slit extending in a direction parallel to any one of the four sides of the two main surfaces in the peripheral surface of the nine rectangular sections obtained by cutting out one of the nine sections obtained by dividing the two main surfaces in the rectangular parallelepiped. Three types of pieces,
7 types of pieces provided with slits extending in a direction parallel to any of the four sides of the two main surfaces in the peripheral surface of the rectangular parallelepiped with two different sections cut out of the nine sections. ,
Seven types of pieces provided with slits extending in the direction parallel to any of the four sides of the two main surfaces in the peripheral surface of the rectangular parallelepiped and cutting out three different sections out of the nine sections. ,
Six types of pieces provided with slits extending in a direction parallel to any of the four sides of the two main surfaces in the peripheral surface of the rectangular parallelepiped and cutting out four different sections out of the nine sections. A total of 24 pieces of
The three-dimensional model is formed by repeating the operation of making the two main surfaces of one piece of the 24 kinds of pieces orthogonal to the two main surfaces of another piece and fitting the slits of those pieces together. An educational toy characterized in that it is configured as follows.   The educational toy according to claim 1 or 2, wherein the slit extends over a half length of the section.