JP3239368U - Box-shaped three-dimensional puzzle - Google Patents

Abstract

[Problem] Box-shaped puzzles are difficult to work on because they blindly pile up multiple pieces of solid cubes. The shape of the pieces changes when the pieces are turned over, and the problem of the cube unit becoming thick and heavy has been solved. offer. SOLUTION: If a piece 3 or a group of pieces constituting six faces of a cube is made into a line symmetrical shape that remains the same shape even if it is turned over, assembling is facilitated. In addition, in order to enhance the puzzle-likeness, all the shapes are different, or all are diagonally symmetrical with the diagonal line as the axis of symmetry. Also, the thickness of the box-like cube 1 is reduced by half by replacing the conventional cube unit with a half-cube unit. Furthermore, providing windows in the walls of the cavity can reduce weight and save material. [Selection drawing] Fig. 10

Description

TECHNICAL FIELD The present invention relates to an improvement of a box-shaped three-dimensional puzzle assembled with a plurality of planar pieces.

3D puzzles have been known for more than 30 years, and have been known for more than 30 years. Products that combine pieces of various shapes are sold as puzzles and educational toys.

However, since conventional box-packed puzzles and three-dimensional puzzles are puzzles based on the concept of blindly stacking pieces, they are difficult for beginners to approach.

Therefore, the inventor proposed a box-shaped three-dimensional puzzle shown in Patent Document 1 for the purpose of breaking through the conventional concept and providing a three-dimensional puzzle as an educational toy or brain training toy with a new idea.

That is, the polycubes that form the pieces are made into plane polycubes of different shapes. First, a group of pieces consisting of the bottom surface, four side surfaces, and the top surface is formed. .

JP 2020-188853

If the pieces that make up the six faces forming the box-like cube are turned over, the shape will be different, so it is still a difficult puzzle for beginners.

A box-like cube made up of cube unit pieces is thick and heavy.

In order to solve the above-mentioned problems, the present invention makes the shape of each flat piece or piece group constituting the six surfaces a line-symmetrical shape that remains the same even when turned inside out.

Although the six pieces or groups of pieces may have the same shape, it is preferable that the pieces of the three-dimensional puzzle all have different shapes.

There are two types of linear symmetry: one whose axis of symmetry is the perpendicular bisector (hereafter referred to as the perpendicular symmetry) and another whose axis of symmetry is the diagonal (hereafter referred to as the diagonal symmetry). Diagonally symmetrical pieces or groups of pieces that are all different in shape are preferred because symmetrical pieces are more scarce.

The cube unit that makes up the piece is changed to a half cube unit to reduce the wall thickness by half. Furthermore, a window may be provided on the wall of the hollow portion by removing the unit other than the unit that connects with the fitting portion.

With this invention, each flat piece or group of pieces that make up the six faces has the same shape even when turned over, making it easier for beginners to get involved in three-dimensional puzzles, making it easier to use for intellectual training for young children and brain training for older people. Become.

In addition, by changing the coloring on the front and back sides of each piece, it becomes possible to freely change the hue of the front side of the assembled box-shaped cube.

The wall that forms the cavity of the box-shaped cube of each piece is a half cube, and the width of the fitting part of the side is the same as the wall thickness of the half cube, thereby reducing the wall thickness by half. , the weight is also halved. Further, by providing the window on the wall, the weight can be further reduced and the material can be saved.

A perspective view and a sectional view of Embodiment 1 of the present invention An exploded view of Embodiment 1 of the present invention An exploded view of Embodiment 2 of the present invention An exploded view of Embodiment 3 of the present invention Development view of embodiment 4 of the present invention An exploded view of Embodiment 5 of the present invention Exploded view of embodiment 6 of the present invention An exploded view of Embodiment 7 of the present invention Front view of Embodiment 8 of the present invention Perspective view and cross-sectional view of Embodiment 9 of the present invention An exploded view of Embodiment 9 of the present invention An exploded view of Embodiment 10 of the present invention An exploded view of Embodiment 12 of the present invention An exploded view of Embodiment 14 of the present invention

This box-shaped three-dimensional puzzle is composed of a box-shaped cube 1 having a hollow part 2 inside the cube, and six or more plane type pieces 3 of linear symmetry that have the same shape even when turned over.
A box-shaped three-dimensional puzzle in which six pieces or a group of pieces 3 forming each face of a box-shaped cube 1 are diagonally symmetrical with a diagonal line having a different shape as an axis of symmetry.
A box-like three-dimensional body in which the walls 6 of each piece 3 forming the cavity 2 of the box-like cube 1 are half-cubes 5, and the width dimension of the fitting part 7 of the side is the same as the wall thickness of the half-cube of the wall 6. puzzle. Furthermore, a box-shaped three-dimensional puzzle in which a window portion 8 is provided on the wall portion 6 of the hollow portion 2 by removing the portion other than the portion connected to the fitting portion 7 .

FIG. 1 shows a perspective view and a cross-sectional view of a box-like cube 1 of 4×4×4 units of Example 1 in the embodiment of the present invention.
When the unit is a cube 4, the cavity 2 of the assembled box-like cube 1 is equivalent to 2×2×2 units.
FIG. 2 shows an exploded view of this box-shaped cube 1. As shown in FIG. The piece 3 in this example is a planar polycube having six different shapes, in which vertical symmetry and diagonal symmetry are mixed, but it is not limited to this. The number of pieces is preferably 6 or more, but pieces having the same shape may be present.

FIG. 3 shows a developed view of a box-like cube 1 of 4×4×4 units of Example 2 of the embodiment of the present invention.
The pieces 3 in this example are all diagonally symmetric planar polycubes with different shapes, but they are not limited to polycubes as long as they have the same shape, and may be, for example, a single plate.

FIG. 4 shows a developed view of the box-shaped body 1 of 5×5×5 units of Example 3 in the embodiment of the present invention.
When the unit is a cube 4, the cavity 2 of the assembled box-like cube 1 is equivalent to 3×3×3 units. The piece 3 of this example is a combination of 6 vertically symmetrical polycubes with different shapes, but is not limited to this. For example, a window portion corresponding to one unit may be provided in the central portion of each piece 3 . It can also be used as a piggy bank if a slot is provided on one side. As shown in FIG. 5, which is a development view of the fourth embodiment, one surface may be made up of two pieces 3, and each surface may be fitted and assembled into the box-like cube 1 first. Note that if the piece group on each surface is linearly symmetrical, each piece 3 may have the same shape.

FIG. 6 shows a developed view of a box-like cube 1 of 5×5×5 units of Example 5 in the embodiment of the present invention. The piece 3 in this example is a combination of 12 diagonally symmetric planar polycubes with different shapes, but it is not limited to this. may be Each of the six shapes may be combined in other ways as long as they are diagonally symmetrical, and pieces 3 having the same shape may be present.

FIG. 7 shows an exploded view of a box-like cube of 6×6×6 units when the units are cubes 4 in Example 6 of the embodiment of the present invention. Six diagonally symmetrical pieces 3 or 12 divided pieces 3, all of which are different in shape, can be selected. Since there are many diagonally symmetrical combinations of the six pieces or the piece group 3 before assembly, it is not limited to this.

FIG. 8 shows an exploded view of a box-like cube 1 of 7×7×7 units when the unit is the cube 4 in Example 7 of the embodiment of the present invention. The piece groups 3 forming the six faces are all diagonally symmetrical with different shapes. Each piece group 3 is composed of four diagonally symmetrical pieces 3 of six types. These 24 pieces can be used to assemble 4 box-shaped cubes of 4x4x4 units. However, since the number of units is insufficient by 6, one or two corner portions are missing. Even if you add a unit where it is lacking, all the pieces will be diagonally symmetrical. Since there are many pieces 3 of six diagonally symmetrical shapes, it is not limited to this.

FIG. 9 shows a front view of a box-shaped cube 1 in which the piece unit is changed from the cube 4 to a half-cube 5 having half the thickness as an eighth embodiment of the embodiment of the present invention. The combination of the six pieces is the same as the combination of the six piece group 3 before assembly in the fifth embodiment. Since the thickness is halved, the fitting portions 7 on each side protrude from the cubic shape.

FIG. 10 shows a perspective view and a cross-sectional view of a box-shaped cube 1 of Example 9 according to the embodiment of the present invention. FIG. 11 shows an exploded view of this box-shaped cube 1. As shown in FIG. This is a shape obtained by cutting off the portion protruding from the cubic shape of the box-shaped cube of the eighth embodiment. A piece 3 forming six faces is composed of a 3×3 half cube 5 forming a wall portion 6 of the hollow portion 2 and a fitting portion 7 having the same width as the thickness of the half cube. If the shape of each piece 3 is the same, it is not always necessary to use the half-cube 5 . The size of the cavity 2 is the same as the 3×3×3 cube unit. It can also be used as a piggy bank by opening a slot in the center of any surface.

FIG. 12 shows a developed view of the box-shaped cube 1 of Example 10 in the embodiment of the present invention. A piece 3 forming six faces is composed of a 2×2 half cube 5 forming a wall portion 6 of the hollow portion 2 and a fitting portion 7 having the same width as the thickness of the half cube. The size of the cavity 2 is the same as 2×2×2 of the cube unit. The size of the box-shaped cube 1 is the same as the size of the cavity in the ninth embodiment.

The piece 3 forming the six faces of the box-shaped cube 1 of Example 11 of the embodiment of the present invention is one half-cube 5 forming the wall 6 of the hollow portion 2, and the width dimension is the same as the thickness of the half-cube. and a fitting portion 7. The size of the box-shaped cube 1 is the same as the size of the cavity in the tenth embodiment. Since this is a cube unit 4×4×4 box-shaped cube 1 whose side is half the length of the long side of the half cube unit, the combination of the six pieces 3 is the development view of the second embodiment ( Fig. 3).

FIG. 13 shows a developed view of the box-shaped cube 1 of Example 12 in the embodiment of the present invention. The piece 3 forming the six surfaces is obtained by removing the wall portion 6 of the hollow portion 2 of the ninth embodiment except for the portion connecting the fitting portion 7 and providing the window portion 8 .

The piece 3 forming the six faces of the box-shaped cube 1 of Example 13 in the embodiment of the present invention is removed except for the portion connecting the wall portion 6 of the hollow portion 2 of Example 10 with the fitting portion 7. A window portion 8 is provided. Since this is a cube unit 6×6×6 box-shaped cube 1 whose side is half the length of the long side of the half-cube unit, the combination of the six pieces 3 is the developed view of the sixth embodiment ( Fig. 7).

FIG. 14 shows an exploded view of the box-shaped cube 1 of Example 14 of the embodiment of the present invention. A piece 3 forming six faces is a box-like cube 1 of cube units 6×6×6 similar to that of the thirteenth embodiment, one side of which is one-third the length of the long side of the half-cube unit. The combination of the six pieces 3 was a pattern different in shape from that of Example 13.

The pieces forming the six faces of Example 15 in the embodiment of the present invention are the same cube unit as in Example 14, which is a 4×4×4 box-shaped cube, so the combination of the six pieces is shown in FIG. It becomes the same as that of Example 2.

Since the six pieces or the piece group 3 of each box-shaped cube 1 in the embodiment of the present invention have a unique linearly symmetrical design, the piece side surfaces of the fitting portions constituting each surface have a different hue from the piece surfaces. Then, the piece shape will stand out.

The box-shaped cube 1 of Example 11 in the embodiment of the present invention can be nested in the cavity 2 of the box-shaped cube 1 of Example 10, and these can be nested in the cavity 2 of the box-shaped cube 1 of Example 9 to form a matryoshka doll. It can be nested three times like this.
Also, the box-shaped cubes 1 of Examples 12 to 15 can be nested like a four-fold matryoshka doll.

The piece 3 according to the embodiment of the present invention may be produced by joining the cube 4 or the half cube 5 or the parts of the meshing portion 7. Alternatively, the piece 3 may be integrally molded according to the shape or may be of any size. You may join a plate-shaped body.
Suitable materials for the piece 3 include wood, plastic, and paper.
The size of the box-shaped cube 1 is not particularly specified, but the length of one side is preferably from 40 mm to 200 mm.

FIG. 1 is a perspective view and a cross-sectional view of a 4×4×4 unit box-shaped cube 1 of Embodiment 1 of the present invention. FIG. 2 is an exploded view thereof.
The unit cube is made of hemlock wood of 23 mm square, and the piece has a mixture of vertical symmetry and diagonal symmetry. The piece 3 is joined with a vinyl acetate resin adhesive for wood.

FIG. 3 is an exploded view of the 4×4×4 unit box-shaped cube 1 of Embodiment 2 of the present invention. All six pieces 3 are diagonally symmetrical with different shapes.
The unit cube is made of cypress of 25 mm square, and the piece 3 is joined with a vinyl acetate resin-based adhesive for wood.

FIG. 4 is an exploded view of a 5×5×5 unit box-shaped cube 1 according to Embodiment 3 of the present invention. All the six pieces 3 are vertically symmetrical with different shapes.
The unit cube is made of cypress of 20 mm square, and the pieces 3 are joined using a vinyl acetate resin-based adhesive for wood.

FIG. 5 is an exploded view of a 5×5×5 unit box-shaped cube 1 of Embodiment 4 of the present invention. The shape of the piece group 3 before assembly is the same as that of the piece 3 of Example 3, but each piece is divided into two pieces vertically symmetrically so that each piece group can fit two pieces together with projections and depressions. ing. The six piece groups all have different shapes, but the 12 pieces have two types of the same shape, four pieces each. The joining method of the pieces 3 is also the same as in the third embodiment.

FIG. 6 shows an exploded view of a box-like cube 1 of 5×5×5 units of Embodiment 5 of the present invention. The piece 3 of this example is a combination of 12 diagonally symmetric planar polycubes of different shapes. The unit cube is made of cypress of 20 mm square, and the piece 3 is joined with a vinyl acetate resin adhesive for wood.

FIG. 7 shows a developed view of a box-like cube 1 of 6×6×6 units when the units of the sixth embodiment are cubes 4 . The piece groups 3 forming the six faces are all diagonally symmetrical with different shapes. The unit cube is made of cypress of 20 mm square, and the joining of the pieces is the same as in Example 5.

FIG. 8 shows a developed view of a box-shaped cube 1 of 7×7×7 units when the units of the seventh embodiment are cubes 4 . The piece groups 3 forming the six faces are all diagonally symmetrical with different shapes. Each piece group is divided into 24 pieces. These pieces are color-coded into 6 types of diagonally symmetrical shapes. The unit cube is made of cypress of 20 mm square, and the joining of the pieces is the same as in the sixth embodiment.

FIG. 9 shows a front view of a box-shaped cube 1 in which the piece unit is changed from the cube 4 to a half-cube 5 having half the thickness as an eighth embodiment. The combination of the six pieces is the same as the combination of the six piece group 3 before assembly in the fifth embodiment. The half cube 5 is made of Japanese cypress and has a size of 30 mm×30 mm×15 mm. Since the thickness is halved, the fitting portion 7 on each side protrudes from the cubic shape.

FIG. 10 is a perspective view and a cross-sectional view of a box-shaped cube 1 according to a ninth embodiment of the present invention. FIG. 11 is an exploded view thereof.
The piece 3 forming the six faces is fitted with a 3×3 half cube 5 (30 mm×30 mm×15 mm) forming the wall portion 6 of the hollow portion 2 with the same width dimension (15 mm square) as the thickness of the half cube. It consists of part 7. A slot is made in the center of one side so that it can also be used as a piggy bank. The pieces are made of cypress wood, and are joined using a vinyl acetate resin-based adhesive for wood.

FIG. 12 is a development view of a box-like cube according to Embodiment 10 of the present invention. The piece 3 forming the six faces is fitted with a 2×2 half cube 5 (30 mm×30 mm×15 mm) forming the wall portion 6 of the hollow portion 2 with the same width dimension (15 mm square) as the wall thickness of the half cube. It consists of part 7. The size of the cavity 2 is the same as 2×2×2 of the cube unit. The size of the box-shaped cube 1 is the same as the size of the cavity in the seventh embodiment. The pieces are made of cypress wood, and are joined using a vinyl acetate resin-based adhesive for wood.

The piece 3 forming the six faces of the cube of the eleventh embodiment of the present invention has the same width dimension as the half cube 5 (30 mm × 30 mm × 15 mm) forming the wall 6 of the cavity 2 and the thickness of the half cube. (15 mm square) fitting portion 7 . The size of the box-shaped cube 1 is the same as the size of the cavity in the tenth embodiment. Since this is the box-shaped cube 1 of the cube unit 4×4×4 with one side of the cube unit of Example 2 being halved, the combination of the six pieces 3 is the development view of Example 2 (FIG. 3). is the same as

FIG. 13 shows an exploded view of the box-shaped cube 1 of Embodiment 12 of the present invention. The piece 3 forming the six surfaces is obtained by removing the wall portion 6 of the hollow portion 2 of the ninth embodiment except for the portion connecting the fitting portion 7 and providing the window portion 8 . For piece 3, units of lengths 30 mm and 45 mm were created from a 15 mm square bar of cypress wood, and joined with a vinyl acetate resin-based adhesive for wood according to the developed view.

The piece 3 forming the six surfaces of the thirteenth embodiment of the present invention is obtained by removing the wall portion 6 of the cavity portion 2 of the tenth embodiment except for the portion connecting the fitting portion 7 and providing the window portion 8. . Since this is a cube unit 6×6×6 box-shaped cube 1 whose side is half the length of the long side of the half-cube unit, the combination of the six pieces 3 is the developed view of the sixth embodiment ( Fig. 7). For piece 3, units of lengths 30 mm and 45 mm were created from a 15 mm square bar of cypress wood, and joined together with a vinyl acetate resin-based adhesive for wood according to the developed view of FIG.

FIG. 14 shows an exploded view of the box-shaped cube 1 of Example 14 of the present invention. Pieces 3 forming six faces are box-shaped cubes 1 of cube units 6×6×6 similar to those of the thirteenth embodiment, in which the long sides of the half-cube units are reduced to one-third. For piece 3, units of lengths 10 mm, 20 mm and 30 mm were created from a 10 mm square bar of cypress wood, and joined together with a vinyl acetate resin-based adhesive for wood according to the developed view. The combination of the six pieces 3 was a pattern different in shape from that of Example 13.

The pieces forming the six faces of Example 15 of the present invention are the same cube units as in Example 14, and since they are 4×4×4 box-shaped cubes, the combination of the six pieces is shown in FIG. 3 as in Example 11. It is the same as the development view of the second embodiment shown. The method of making the pieces is the same as in the fourteenth embodiment.

The three-dimensional puzzle of the present invention is easy for beginners to grasp, and is particularly suitable as an educational toy for young children and a brain-training toy for elderly people. In addition, the assembled box-shaped cube can be used as a piggy bank or an accessory case.

1 box-shaped cube 2 cavity 3 piece or group of pieces 4 cube
5 half-cube 6 cavity wall 7 side fitting 8 wall window

Claims (4)

This box-shaped three-dimensional puzzle is composed of a box-shaped cube 1 having a hollow part 2 inside the cube, and six or more plane type pieces 3 of linear symmetry that have the same shape even when turned over. 2. The box-shaped three-dimensional puzzle according to claim 1, wherein the six pieces or the group of pieces 3 forming each face of the box-shaped cube 1 are diagonally symmetrical with the diagonal line having a different shape as the axis of symmetry. The wall portion 6 of each piece 3 forming the hollow portion 2 of the box-shaped cube 1 is a half cube 5, and the width dimension of the side fitting portion 7 is the same as the wall thickness of the half cube. The box-shaped three-dimensional puzzle according to claim 2. 4. The box-shaped three-dimensional puzzle according to claim 3, wherein the window portion 8 is provided by removing the wall portion 3 of the hollow portion 2 except for the portion connecting the fitting portion 7.

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