JPH02249576A - Stereo puzzle block - Google Patents

Abstract

PURPOSE:To increase the degree of freedom of assembly and to improve design properties after assembly by a method wherein the one face of each tetrahedron block is selected and arranged in a state to make contact with the faces of a regular octahedron blocks to form a composite tetrahedron. CONSTITUTION:In assembly of a composite tetrahedron B, Blocks 2a, 2b, 2c, and 2d are positioned in a state that faces 24, 22, 21, and 23 make contact with faces 14, 12, 15, and 17, respectively, of a regular octahedron block. Blocks 3a, 3b, 3c, and 3d are positioned in a state that faces 34, 31, 32, and 33 make contact with faces 11, 13, 18, and 16, respectively, of an octahedron block. In this case, the blocks 3a, 3b, and 3d are arranged so that the faces 32 are pointed to the same direction, the blocks 2a, 2b, and 2c are arranged so that faces 23 are pointed to the same direction, and the faces of remaining blocks 3c and 2d are arranged so that they have the same color as those of other block faces forming faces connected to the faces of the remaining blocks. In this case, the faces 32 of the blocks 3a, 3b, and 3d, positioned facing the block 2b as seen from the apex of the block 2b, are positioned flush with each other to form a green large triangle.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a three-dimensional puzzle block, and a desired color can be created by selectively arranging colored tetrahedral blocks in contact with each side of a regular octahedral block. This invention relates to a three-dimensional puzzle block that obtains a composite tetrahedron having combinations.

``Prior Art'' Three-dimensional puzzles require the ability to grasp three-dimensional positional relationships, and are useful as a way to develop children's three-dimensional senses or as entertainment for adults. Many such three-dimensional puzzles have been proposed in the past, but there are only a few that involve assembling polyhedrons.
Something called ICJ (hereinafter referred to as conventional three-dimensional puzzle) is known.

This conventional three-dimensional puzzle consists of 24 plastic panels with special hinges that can be bent, and these plastic panels are connected to each other using the special hinges to assemble a composite tetrahedron (Kepler's star-shaped octahedron). .

[Problems to be Solved by the Invention] However, the conventional three-dimensional puzzle described above has only one procedure for assembling a composite tetrahedron, and once this procedure is memorized many times, the puzzle loses its interest. Furthermore, since all of the plastic panels are colored in the same color, the design after assembly is somewhat lacking.

The present invention has been made in view of this background, and its purpose is to provide a three-dimensional puzzle block that has a high degree of freedom in assembly and also has an excellent design after assembly.

[Means for Solving the Problems] The three-dimensional puzzle block of the present invention includes - regular octahedral blocks 1 (FIG. 1) and each face 11 of the regular octahedral blocks 1.
1-2.13.14.15.16.17.18 (Figure 3) and the same surface 21.22.23.24.31.32.3
Eight regular tetrahedral blocks 2a, 2b, 2c, 2d, 3a, 3b, 3C13 having 3.34 (Figures 4 and 5)
d, and these regular tetrahedral blocks are divided into two groups of four each, 2a to 2d, 3a to 3d, and both groups 2a to 2d, 3
Each side 21 to 24 of a regular tetrahedron with the same coloring for a to 3d.
In addition to coloring the regular tetrahedral blocks 2a, -2 (1, 3a-, 3a) in different colors, the colors of the corresponding pair of adjacent faces 23, 24, 33, 34 are switched and colored. It is.

[Function] In the three-dimensional puzzle block of +14 composition, each of the above-mentioned regular tetrahedral blocks 1 cocks 2a to 2 (1, 3a to When a composite tetrahedron B (FIG. 2) is constructed by selectively arranging one surface of 3(1), the composite tetrahedron B has a surface directly opposite to it (for example, blocks 3a, 3b, and 3d) when viewed from the direction of each vertex. 32 on each side
) presents a large equilateral triangle of − color.

[Example] Figure 1 shows the configuration of a three-dimensional puzzle block, including - regular octahedral blocks 1, and four regular tetrahedral blocks arranged in upper and lower positions in contact with each surface of the blocks 1. 2a, 2b
, 2c, 2d, 3a, 3b, 3C13d, and a transparent open case 41 and a transparent lid 42 that house them.

Each of the blocks 1.2a to 2d and 3a to 3d is made of plastic, for example, and the regular octahedral block 1 has eight equilateral triangular faces 1 on the upper and lower outer peripheries of a pyramidal shape, as shown in FIG.
1.12.13.14.15.16.17.18. In addition, regular tetrahedral blocks 2a to 2d, 3a to 3
d is each of the four faces 21.22.23.24.31.32
．． 33 and 34 (only 2a and 3a are shown in FIGS. 4 and 5) are regular triangles having the same shape as each of the faces 11 to 18 of the regular octahedron. In addition, in the illustrated state, each regular tetrahedral block 2a
The side faces of ~2d and 3a~3d are 21.22.23.31.32.33 in the counterclockwise direction when viewed from the apex, and the bottom face is 24.34. In addition, an example of coloring of that surface is shown in parentheses attached to each number.

In other words, the regular tetrahedral blocks are divided into two groups of four, 2a to 2d, and 3a to 3d, and each group of tetrahedral blocks has a common color of red, green, yellow, and blue as described above. Tetrahedral blocks 2a to 2d whose surfaces 21 to 24.31 to 34 are colored in different colors and belong to different groups,
3a to 3d, the coloring of the corresponding pair of adjacent surfaces 23.24.33.34 is switched. Note that since the regular octahedral block 1 is no longer visible after assembly, no particular coloring is necessary.

The procedure for assembling each block of structure 1 is as follows.

As shown in FIG. 1, each of the above-mentioned regular tetrahedral blocks 2a to 2d
, 3a to 3d, 2C12d and 3c, 3 in the same town
d are arranged in symmetrical positions and placed on the bottom wall of the case 41 in a circumferential manner so that they touch each other with one vertex facing outward;
Each of the apexes is located in contact with the four corners of the bottom surface of the case 41.

After that, the two-legged four blocks 2C12d, 3C13
When the lower half of the regular octahedral block 1 is inserted into the fishhook-shaped recess formed by d, the lower half and the recess are completely identical in shape, so that they are perfectly aligned.

Next, in the space between the upper half of the regular octahedral block 1 and the side wall of the case 41, the remaining regular tetrahedral blocks 2a, 2b, 3
Place a and 3b. In other words, the regular tetrahedral block 17 of the same town
When the claws 2a, 2b and 3a, 3b are arranged in symmetrical positions and arranged circumferentially so that they touch each other with one vertex facing outward, each vertex touches the four corners of the case 41 open. The edges of each block 2d, 2b, 3a, and 3b are located on the opening surface of the case.When the moss 42 is closed, as shown in FIG. A composite tetrahedron B is assembled in a state where they are in contact with each other.

Now, when assembling the above composite tetrahedron B, block 2a
is surface 24, block 2b is surface 22, block 2C is surface 2
1-, the block 2d has its surface 23 located in contact with the surface 14, ], 2.15.17 of the regular octahedral block, and the block 3a has its surface 34 and the block 3b has its surface 31
, the surface 32 of the block 3C and the surface 33 of the block 3d are located in contact with the surfaces 11, 13, 18, and 16 of the regular octahedral block, respectively.

At this time, for example, as shown in the figure, blocks 3a, 3[), 3
d is arranged so that each surface 32 faces the same direction, and
The blocks 22I, 2b, and 2C are arranged so that each surface 23 faces the same direction, and the remaining blocks L'? Arrange each face of Tsuku 3C22d as appropriate so that it has the same color as another face that is continuous with these faces: Then, composite tetrahedron 13
Each vertex of, for example, the pro blocks 3a, 3b, 3d that are directly opposite to this when viewed from the vertex direction of the block [11117 block 21:)
The faces 32 are on the same plane and form a large green triangle as a whole. In addition, each surface 2 of blocks 2a, 2b, and 2C that directly faces block 3a when viewed from the vertex direction.
3 is on the same-iii and forms a yellow doll triangle as a whole. In the figure, the coloring of each block surface is shown in parentheses, and each block surface viewed from the remaining vertex direction similarly forms a large triangle of one color.

With the arrangement positions of the regular tetrahedral blocks 2a to 2d and 3a to 3d being the same as above, each surface 11- of the regular octahedral block 1 and the tonk 1 is
Composite tetrahedron 1 can be obtained by appropriately changing the hook surface of regular tetrahedron block 1 in contact with ~18, or by appropriately rotating each regular tetrahedral block with the same block surfaces in contact with each other.
In addition to the color scheme shown in Fig. 2 above, 3 has the color scheme shown in Fig. 6 (1) to (
5) It is possible to adopt five types of color arrangement states as shown in FIG.

In the above embodiment, if each block is composed of magnetic bodies that attract each other, the transparent case is not necessarily required, but it is better to assemble the blocks one after another in the case so that the assembling procedure can be completed in advance.
This is preferable because the difficulty level of the puzzle increases because it is necessary to do C, and it also prevents dust from adhering to the blocks.

The regular octahedral block 1 does not need to be an integral piece, and may be constructed by combining three parts.

It goes without saying that the material and coloring of each of the blocks 17 can be arbitrarily selected.

[Effects of the Invention] As described above, the three-dimensional puzzle block of the present invention maintains interest as a puzzle for a long time because the steps for assembling the colored composite tetrahedrons are rich in variety. The body has an excellent design, so it can be used as a decorative ornament.

[Brief explanation of drawings]

Figure 1 is a three-dimensional puzzle! An exploded perspective view showing the configuration of the cock, Fig. 2 is an overall perspective view of the three-dimensional buzz lub NE after assembly, Fig. 3 is a perspective view of the regular octahedral buzz lub, and Figs. 4 and 5 show different groups. Fig. 0 is a perspective view showing another example of the completed block assembly. 1... Regular octahedral block 11.12.13.14.15.16.1-'7.1.
8... Surface 2 a,, 2b, 2C22d=-=-Group G4: Tetrahedral block 21, . 22.23.24... Surfaces 3a, 3b, 3C13d... Tetrahedral blocks belonging to other groups 31.32.33.34... Surface 41... Transparent case 42... Transparent lid B...・Composite tetrahedral diagram (blue) (red) (bacteria) (,5) (item)

Claims (1)

[Claims] It is equipped with one regular octahedral block and eight regular tetrahedral blocks having faces of the same shape as each face of the regular octahedral block, and these regular tetrahedral blocks are divided into two groups of four blocks,
Each side of the regular tetrahedron is colored in a different color with the same coloring for both groups, and the colors of the corresponding pair of adjacent faces of the regular tetrahedral blocks belonging to different groups are swapped and colored. Construct a composite tetrahedron by selectively arranging one side of each of the above regular tetrahedral blocks in contact with each side of
A three-dimensional puzzle block characterized in that, when viewed from the direction of each vertex of the composite tetrahedron, the face facing directly to the composite tetrahedron presents a large equilateral triangle of one color.