TECHNICAL FIELD

The present invention relates to a polyhedral toy, which can be transformed from a form of a cuboid or a cube into various forms.

BACKGROUND ART

Hitherto, there has been known a cube toy which is called “Yoshimoto Cube”, and a configuration thereof and a manufacturing method therefor are disclosed in Patent Literature 1.

Yoshimoto Cube is formed of two toy main bodies, which can basically be fitted to each other by male/female fitting and can further be transformed between a stellated polyhedron and a cube.

When the two toy main bodies are referred to as “toy main body A” and “toy main body B”, the toy main body A and the toy main body B are each formed of eight polyhedral unit bodies.

Playing methods of Yoshimoto Cube mainly include two patterns.

One of the patterns is as follows.

The form illustrated in FIG. 1 of Patent Literature 1 is an initial form of the toy main body A. When the toy main body A is unfolded from this state around a division line 14 (see FIG. 1 of Patent Literature 1), the toy main body B of a stellated polyhedron appears from the inside. The toy main body B of a stellated polyhedron is taken out and separated from the toy main body A. After the toy main body B is separated from the toy main body A, the toy main body A is unfolded to complete the stellated polyhedron.

Another one of the patterns is as follows.

In the state of the initial form of the toy main body A, colors of squares forming the toy main body A appear on surfaces of the cube. The toy main body A is unfolded from this state around a division line intersecting the division line 14 to transform the toy main body A into the cube of the toy main body B so that colors of the squares forming the toy main body B appear.

That is, the playing methods of Yoshimoto Cube include a method of reversing surfaces of the cube of the toy main body A or the toy main body B to transform the cube into a cube of another color, and a method of transforming the toy main body A or the toy main body B between a cube and a stellated polyhedron.

However, the playing methods such as the transformation of the toy main body A or the toy main body B into a cube of another color and the transformation of the toy main body A or the toy main body B between a cube and a stellated polyhedron are limited in playing patterns.

Moreover, the playing methods basically involve the use of the toy main body A and the toy main body B in pair, and playing methods involving individual use of the toy main body A and the toy main body B are also limited.

Further, the playing methods basically involve the use of the toy main body A and the toy main body B in pair, and extensibility for achieving a wide variety of contents of play, such as combination of two or more cube toys, was poor.

CITATION LIST

Patent Literature

[PTL 1] JP S63-36272 A

SUMMARY OF INVENTION

Technical Problem

The playing methods of Yoshimoto Cube had limited patterns. Accordingly, the invention of the present application has an object to provide a wide variety of playing patterns with regard to playing methods of a polyhedral toy which is formed of polyhedral pieces similarly to Yoshimoto Cube, and to provide playing patterns which cannot be predicted in terms of change in forms with regard to a polyhedral toy, thereby enhancing elements of puzzles.

Moreover, the invention of the present application has an object to provide a polyhedral toy which can be enjoyed in terms of change in forms thereof even when only one polyhedral toy is used, and to provide a polyhedral toy having extensibility for achieving a wide variety of contents of play through combination of two or more polyhedral toys.

Solution to Problem

According to the present invention, there is provided a polyhedral toy including eight polyhedral pieces, wherein the polyhedral pieces are each formed with, among six faces of a cube, three faces adjacent to one another being left remaining and another three faces being removed, to thereby form three quadrangular pyramids having the remaining three faces serving as bottom faces, and the polyhedral pieces each include a triangle surface formed of six faces other than respective side faces of the quadrangular pyramids placed on one another.

The bottom faces include a first face and a second face, which perpendicularly intersect each other in a vertical direction in plan view on the triangle surfaces, and a third face, which perpendicularly intersects each of the first face and the second face in a horizontal direction.

The polyhedral pieces are arranged so that, in plan view on a top face of the polyhedral toy having been unfolded into a cuboid shape of two rows and four columns, in each of the first row and the second row, the triangle surface, the third face, the third face, and the triangle surface of the polyhedral pieces are arranged in the stated order.

The polyhedral pieces are coupled so that: a polyhedral piece located at a first row/first column position and a polyhedral piece located at a first row/second column position are coupled to each other at respective sides of first faces which are adjacent to each other; the polyhedral piece located at the first row/second column position and a polyhedral piece located at a first row/third column position are coupled to each other at respective sides of a second face and a first face, which are arranged on the triangle surfaces on the bottom faces of the polyhedral toy and face each other; and the polyhedral piece located at the first row/third column position and a polyhedral piece located at a first row/fourth column position are coupled to each other at respective sides of second faces which are adjacent to each other. Moreover, the polyhedral pieces are coupled so that: a polyhedral piece located at a second row/first column position and a polyhedral piece located at a second row/second column position are coupled to each other at respective sides of second faces which are adjacent to each other; the polyhedral piece located at the second row/second column position and a polyhedral piece located at a second row/third column position are coupled to each other at respective sides of a first face and a second face, which are arranged on the triangle surfaces on the bottom face of the polyhedral toy and face each other; and the polyhedral piece located at the second row/third column position and a polyhedral piece located at a second row/fourth column position are coupled to each other at respective sides of first surfaces which are adjacent to each other.

Further, the polyhedral pieces are coupled so that the polyhedral pieces in the first column are coupled to each other at respective sides of the third faces which are adjacent to each other, and the polyhedral pieces in the fourth column are coupled to each other at respective sides of the third faces which are adjacent to each other. (Invention of claim1)

In the above-mentioned invention, the polyhedral toy includes at least one polyhedral toy to be played. (Invention of claim2)

In the above-mentioned invention, the polyhedral toy includes at least two polyhedral toys to be played through fitting to each other by male/female fitting. (Invention of claim3)

In the above-mentioned invention, the polyhedral toy includes at least two polyhedral toys to be played through transformation like building blocks. (Invention of claim4)

Advantageous Effects of Invention

According to the invention of the present application, in place of a cube toy such as Yoshimoto Cube, there is proposed the polyhedral toy described above being capable of providing a wide variety of playing patterns, providing playing patterns which cannot be predicted in terms of change in forms, providing a polyhedral piece toy which can be enjoyed in terms of change in forms thereof even when only one polyhedral toy is used, and providing a polyhedral toy having extensibility for achieving a wide variety of contents of play through combination of two or more polyhedral toys.

