JPS6041277Y2 - Cuboctahedron rotating combination toy - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a cuboctahedral rotating combination toy.

Conventional three-dimensional rotating combination toys have had each side of a regular hexahedron divided vertically and horizontally into two or three equal parts, or each side of a regular tetrahedron divided into three equal parts, but with the present invention. is a cuboctahedron consisting of 8 equilateral triangles and 6 squares, each divided into two halves.Compared to conventional solids, it has 8 rotation axes that rotate two different sides to the right. Moreover, since it has a large number of sides, it is a very versatile toy as a rotating combination puzzle.

Next, referring to the drawings, we will explain the cuboctahedral rotating combination toy of the present invention (hereinafter referred to as 1 cuboctahedral puzzle).

). FIG. 1A shows a plan view of the cuboctahedral puzzle 1.

A cuboctahedron is a polyhedron created by cutting a cube along a line connecting the midpoints of each school.

Therefore, square faces are formed on each face of the cut cube, and equilateral triangular faces are formed where the corners of the cube are cut.

A cuboctahedron is thus a polyhedron in which eight equilateral triangular faces and six square faces are arranged alternately as shown in FIG. 1A.

The external shape of cuboctahedron puzzle 1 has a surface in which each of the six square faces is divided into four by the bisector of each of the cuboctahedron, and each of the eight equilateral triangular faces is divided into four. .

Each of the divided parts consists of 12 movable bodies 3 occupying a corner part 2 (see Fig. 1 C) including the apex of the cuboctahedron, and a central part 4 of the equilateral triangular face divided into four parts (the first The rotation center body 5 (see FIG. 1C) occupies the center of rotation (see FIG. 1C).

There is one center body 7 in the center part 6 of the cuboctahedral puzzle 1 surrounded by the rotation center body 5 and the movable body 3, and this is the core of the cuboctahedral puzzle 1 (the 1
(See Figure C).

As shown in FIG. 2A, the central body 7 is a spherical body whose central axis of rotation 9' is four diagonal lines passing from the eight vertices of a virtual cube 16 shown by dotted lines through the center of the cube.

The four diagonals create a distance of 7 on the surface of the sphere.
Eight rotation center axes 9' are formed, intersecting at angles of 0.5° and 109.5°.

On the spherical surface through which the rotation center shaft 9' passes, there is provided a screw hole 10 into which the rotation center shaft 9 (see FIG. 5), such as a bolt, is screwed (see FIG. 1C).

The rotation center body 5 is a truncated equilateral triangular pyramid, as shown in FIG.
It has an umbrella shape with arcuate grooves 12 on one side 11.

The upper surface 13 of this truncated regular triangular pyramid (see Fig. 1C) is
This corresponds to the central portion 4 (see FIG. 1B) of the divided equilateral triangular surface.

The bottom of the regular triangular pyramid has a recess 1 that receives the surface of the sphere 7.
4 (see FIG. 3B), and a hole 15 is provided at its center for mounting the rotation center shaft 9 (see FIG. 3B), such as the aforementioned bolt.

The center body 7 and the rotation center body 5 are defined by X in FIG.
As shown in FIG. 5, which is a cross-section taken in the -X arrow direction, the spherical surface 8 of the center body 7 and the concave portion 14 of the rotation center body 5 are in contact with each other by the rotation center axis 9 of a bolt or the like, and the center body 7 The rotation center shaft 9 is screwed into the screw hole 10 provided perpendicularly to the convex surface 8 toward the inside of the rotation center body 5, and the bottom surface 14 of the rotation center body 5 is attached so that the center of the hole 15 is connected to the rotation center axis. 9
It is coupled so as to be able to rotate around the rotation center axis 9 so as to coincide with the center of the rotation axis 9.

Note that 29 is a cap, and the rotation center body is installed later.

The movable body 3 is a solid that occupies the corners 2 of the 12 vertices of the cuboctahedral puzzle 1 as shown in FIG. 1B, and its surface shares one vertex 17 as shown in FIG. The two squares 18 face each other at a face angle of 90', and the face angle is f109.
Consists of two equilateral triangles 19 facing each other at 5° (Fig. 1C
reference).

Also, the back side is the one vertex 1 of the two squares 18.
It is the diagonal point of 7.

They share the edge 22 connecting the two vertices 21, and the face angle is >109
．． It consists of two trapezoids 23 facing each other at 5°, and this edge 22
It is provided with two arcuate protrusions 24 symmetrically to each other (Fig. 1C).
reference).

The above two squares 18 are each cuboctahedral puzzle 1
This corresponds to one of the four square faces divided into four parts (see Figure 1 A and B).

In addition, the two equilateral triangles 19 are 4 of the cuboctahedron puzzle 1.
It corresponds to one of the three equilateral triangles surrounding the central part 4 of the equilateral triangle face divided into two (see Figure 1 A and B).
.

As shown in FIGS. 1C and 1D, the rotation center body 5 and the movable body 3 move along the arcuate grooves 12 provided on the three side surfaces 11 of one of the regular triangular pyramids. The arcuate protrusions 24 of No. 3 fit together so that they can move smoothly.

As a result, the three movable bodies 3 are coupled around one rotational center body 5, and together form a rotating assembly 25 that rotates around the rotational center axis 9 of the center body 7. .

Holes 27 and recesses 28 for receiving the poles are provided on the contact surfaces between the back surface of the movable body 3 and the three side surfaces 11 of the rotation center body 5 (see FIG. 5).

In this way, the rotating assembly 2 is rotated by the rickstop mechanism.
5 can be correctly positioned every 1200.

The rotating assemblies 25 are equivalent on the eight rotation center axes 9 of the central body 7, and any two adjacent rotating assemblies 25 share one movable body 3 with each other. It is attached around the rotation center axis 9 mentioned above.

In this way, each rotating assembly 25 can independently rotate around the rotation center axis 9 (see FIG. 1B).

Although the outer shape of the embodiment of the present invention is a cuboctahedron, it can be formed into any outer shape such as a sphere by processing and deforming the surface of the movable body 3 and the upper surface 13 of the rotation center body 5.

This invention was developed as a three-dimensional rotating puzzle.

The puzzle involves making each side of a cuboctahedron the same color, then using the rotation mechanism mentioned above to scatter the colors and then putting them back together.However, it is not limited to color matching, but can also include matching pictures, matching letters, and matching numbers. Applications are also possible.

Also, the rotation operation performed when performing color matching creates groups and is very interesting as a problem in mathematical group theory.

[Brief explanation of the drawing]

FIG. 1A is a plan view of the cuboctahedral rotating combination toy of the present invention, and FIG. 1B is a plan view of the cuboctahedral rotating assembly toy of the present invention.
Figure 1 C shows the case where the rotating assembly in Figure 1 A is removed. Figure 1 shows the back side of the rotating assembly removed in Figure 1 C. Figure 2A is an explanatory diagram of the center body, Figure 2B is a perspective view of the center body, Figure 3A is a perspective view showing the top surface of the rotation center body, Figure 3B is the rotation center. FIG. 4A is a perspective view showing the front surface of the movable body. FIG. 4B is a perspective view showing the back surface of the movable body. FIG. 5 is a perspective view showing the back surface of the movable body. FIG. 2 is a side view showing a cross section taken along line X-X of FIG. Codes in the diagram: 1...Cuboctahedral puzzle, 2...
...Corner part, 3...Movable body, 4...
・Central part, 5...Rotation center body, 6...
central part, 7...centrosome, buttock...spherical surface, 9
...Rotation center axis (bolt), 10...
Screw hole, 11...Side surface, 12...Circular groove, 13...Top surface, 14...Concave portion,
15... Mounting is through hole, 16... Virtual cube, 17... Apex, 18... Square,
19...Equilateral triangle, 21...Vertex, 2
2...edge, 23...trapezoid, 24...
... Arc-shaped projection, 25 ... Rotating assembly, 27
...ball, 28...dent, 29...
····cap.

Claims (5)

[Scope of utility model registration request] (1) A spherical body whose central axis of rotation is the four diagonal lines passing from the eight vertices of a virtual cube through the center of the cube.
8 centroids: 8 rotation centroids each consisting of an equilateral triangular truncated pyramid with a concave portion that receives the surface of the sphere; and having arc-shaped grooves on each of the three sides of the equilateral triangular truncated pyramid; Consisting of two squares that share a common face angle of 90' and two equilateral triangles that face each other with a face angle of >'109.5°, the back surface is at the diagonal point of the one vertex of the two squares. 12 movable trapezoids that share a ridge connecting two vertices and face each other with a face angle of >109.5° with the ridge as the base, and that have arcuate protrusions symmetrical to this ridge. the center body and the rotation center body,
The surface of the center body and the recess of the rotation center body are in contact with each other, and the rotation center body is arranged around the rotation center axis of each surface of the center body so that the center of each of the recesses coincides with the rotation center axis. The rotation center body and the movable body are coupled together so as to be rotatable, and the rotation center body and the movable body are fitted together so that the arc-shaped protrusion of the movable body can move along the arc-shaped groove of the rotation center body. As a result, the three movable bodies are combined around one rotational center body, forming a rotating assembly that rotates around the rotation center axis of the center body, and this rotation The aggregate is 8 of the above-mentioned central bodies.
1. A cuboctahedral rotating combination toy, characterized in that the cuboctahedral rotating combination toy is configured to be equivalent to and independently rotate around the respective rotational central axes. (2) The cuboctahedral rotating combination toy according to claim (1), which is a registered utility model, in which the center body and the rotation center body are rotatably connected with bolts. (3) The cuboctahedral rotary combination according to claim 1, wherein a click stop mechanism is provided on the contact surface between the back surface of the movable body and the side surface of the rotation center body. toy. (4) In the above connection, a bolt serving as a rotation center shaft is screwed into and fixed inside the center body, and the rotation center body is attached by the bolt. The cuboctahedron rotating combination toy described in item 2). (5) In the click stop mechanism, balls are provided on three sides of the rotation center body, and a recess for receiving the balls is provided on the back surface of the movable body, Claim (3) The cuboctahedron rotating combination toy described in .