JPS5815152B2 - block toy - Google Patents

Description

[Detailed Description of the Invention] This invention allows blocks to be combined in various ways, as well as to assemble any structure using the blocks, and also allows the assembled structure to travel. It concerns block toys.

Conventionally, as a block using a hollow columnar body, a B-shaped block body was formed by joining two hollow semicylindrical members with their side walls, and a cylindrical part was provided protruding from the top surface of each semicylindrical member. There was a block (see Japanese Utility Model Application Publication No. 48-80699 (hereinafter referred to as the first publication)), and there was also a block with a side cursor shape based on the semicylindrical member mentioned above (Japanese Utility Model Application Publication No. 48-58895). (Refer to Publication No. 2 (hereinafter referred to as Publication No. 2)).

Furthermore, as a block with gears etc. arranged, a fitting hole and a shaft hole are formed in the block body having a circular or cylindrical projection on the top surface, a gear is fitted into the fitting hole, and a shaft is inserted into the shaft hole. There was one in which a gear and a shaft were engaged and pulleys were attached to both ends of the shaft (see Japanese Utility Model Publication No. 45-32835 (hereinafter referred to as the third publication)).

On the other hand, the present inventor has already discovered a hexagonal cross-sectional shape in which the upper half is the upper half of a regular octagon, the lower half is the lower half of a square, and the height is a hexagonal shape having the above-mentioned cross-sectional outline. The length of the base of 1
A first method in which the side walls of a hollow hexagonal column equal to
block (see Fig. 1), and a second block (see Fig. 2) which is made by joining and integrating another hollow hexagonal column to the back wall of the first block. He devised a block toy that could be used to assemble geometrically beautiful structures imitating arbitrary shapes such as airplanes and tanks, and applied for the application (Utility Application 1986-1983).
No. 121 - Utility Model Application Publication No. 56-152699).

As a result of intensive research to develop such block toys and provide a completely new and very interesting block toy, the inventor of the present invention simply added the blocks described in the first and second publications to those described in the third publication. Instead of arranging large gears, we used a block like the block of the earlier application mentioned above, which regulates the vertical, horizontal, and height dimensions so that any shape can be compactly formed with a small number of blocks. By arranging gears on both sides of such a block, a structure assembled using the blocks can be run using the gears as wheels, and when the structure is running, the gears meshing with the gears that become the wheels can be moved one after another. It is very interesting to be able to rotate the blocks, and it is also possible to mesh the gears with each other in various connected states of the blocks. This is the invention of an educational block toy and the application is hereby filed.

That is, in the present invention, the maximum value of the height and width of the cross-sectional outline is 1.
, the minimum value of the wall thickness between the cross-sectional outer shape and the cross-sectional inner shape is t, the cross-sectional inner shape is a shape that can fit into a cylinder with a diameter of 1 to 2 t, and the height is 1. a plurality of first blocks, each of which has a cylindrical portion having a diameter of 1-2 t and whose height is smaller than the length 1 and integrally protrudes from the upper surface of each of the hollow columnar bodies; In addition to a plurality of second blocks that are integrated by joining other hollow columns to the back wall of each hollow column of the block, from the top edge of the square on the vertical center line of the side square of the first block. By inserting a shaft through the hollow columnar body at the position x (0<x<l) and fixing large gears to both ends of the shaft to provide a central large gear block,
It is a very educational and very educational method that allows you to assemble two central large gear blocks so that the gears mesh with each other via the first and second blocks, and also to run the assembled structure using the gears as wheels. It offers interesting block toys.

The four inventions of the present application will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a first block (hereinafter also referred to as a standard block) which is a component of a block toy according to an embodiment of the fourth invention of the present application, and FIG. 2 similarly shows a second block (also referred to as a standard block).
FIG. 3 shows the third block (hereinafter also referred to as the terminating block), and FIG. 4 shows the fourth block (hereinafter also referred to as the connecting block).

Moreover, FIG. 5 is a plan view showing a fitted state between the hollow hexagonal column and the cylindrical portion of the first block.

In these figures, 1 is a first block formed by compression molding or injection molding of resin or the like, and this first block 1 is made by joining the side walls 2a of two hollow hexagonal columns 2 together. Molded.

The cross-sectional outline of this hollow hexagonal column 2 is the upper half 2e when the upper half is cut from a regular octagon with a distance of 1 between two opposing sides along a center line 2g passing through the midpoint of the two opposing sides. Moreover, the lower half has a hexagonal shape, which is the lower half 2f when a square with a side length of 1 is cut along a center line 2g passing through the midpoint of two opposing sides.

Therefore, the maximum value of the height of this cross-sectional outline is l, and the maximum value of the width is also l.

In addition, the internal cross-sectional shape of this hollow hexagonal column 2 is a hexagonal shape similar to the above-mentioned cross-sectional external shape, which is smaller by the wall thickness t, and the height of this hollow hexagonal column 2 is the base of the hexagon, that is, the above-mentioned square. It is equal to the length l of one side of .

A columnar portion 3 is integrally provided on the upper surface 2b of each hollow hexagonal column 2 so as to protrude therefrom.

The outer diameter of this cylindrical portion 3 is 1-2t, which fits into the inner surface of the hollow hexagonal column 2, and the height h of this cylindrical portion 3 is greater than the height l of the hollow hexagonal column 2. It's getting smaller.

In addition, the second block 4 is formed by joining the back wall 2C of the two hollow hexagonal columns 2 of the first block 1 with another hollow hexagonal column 5, respectively, and molding them integrally, and has a side profile shape. The upper half of the other hollow hexagonal pillar 5, that is, the regular octagonal part, is directed toward the cylindrical part 3 of the first block 1.

Note that this may be joined in the opposite direction to the columnar part 3.

Furthermore, the third block 6 is provided with a cylindrical part 7 integrally protruding from the lower surface 2d of each hollow hexagonal pillar 2 of the first block 1, and the outer diameter and height of this cylindrical part 7 are It has the same dimensions 1-21 and height h as the columnar part 3 of the first block 1.

Furthermore, the connecting block 21 has two hollow hexagonal columns 2, 2.
A substantially triangular flat plate-shaped joint 22 is integrally formed on the upper surface of the side walls of the two blocks 2 and 2, which are integrally joined together.
1 joints 22 can be connected by pins 23.

When both blocks 21 are connected as shown in the figure, the lateral distance occupied by both joints 22 is 1.

FIG. 6 shows a central large gear block 8, which is an important component of the block toy of the present invention, which is located on the vertical center line 9a of the side square 9 of the first block 1 and extends from the upper side 9b to the
Insert the shaft 10 through the hollow hexagonal column 2 at the position,
A large gear 11 with a radius R (>1) is attached to both ends of this shaft 10.

Further, FIG. 7 shows a central small gear block 15, which has small gears 17 of radius r (<1) fixed to both ends of a shaft 16 inserted at the same position as the central large gear block 8.

Further, FIG. 8 shows a small end gear block 18, in which a shaft 19 is inserted at a position y from the upper side 9b of the side square 9 of the first block 1 and 2 from the left side 9c.
A small gear 20 with a radius r (<1) is fixed to both ends of the gear.

Next, a method for assembling these gear blocks to mesh with each other will be explained.

The dimensions of each part of the first to fourth blocks and three types of gear blocks are 1 = 25 mm, x = 5 mm, y = 7 m (1) z =
5mm, R==30mm, r=15mm.

(I) When the large central gear blocks 8 are to be meshed with each other, three types of assembly methods shown in FIG. 9 a, b, and c are possible.

That is, in the same figure a, the cylindrical part 3 of the central large gear block 8 on the upper left in the drawing is inserted into the standard block 1, the cylindrical part 3 of the standard block 1 is inserted into the L-shaped block 4, and the L-shaped block 4 is inserted.
The cylindrical part 3 of another central large gear block 8 is inserted into the side hexagonal pillar 5.

At this time, between the dimensions of each part The relationship is established.

In the case of the figure, the upper central large gear block 8 is connected to the successive block 4, L-shaped block 4, standard block 1, L-shaped block 4, standard block 1, and central large gear block 8. The relational expression in this case is as follows.

In the case of C in the same figure, from the upper block 8, blocks 4, 4
, 1, and 8, and the relational expression in this case is as follows.

In the case of C in the same figure, both blocks 8,
Although there is a slight gap between the large gears 11 and 11 of the gears 8, this gap is within the word difference range of 10% of the radius R allowed by the meshing of both the gears 8, 8, so there is no problem in practice.

In addition, in FIG. 9, three cases are given as examples of the method of meshing the central large gear blocks 8, but both blocks 8,
It is conceivable that there may be other methods of meshing the parts 8 to each other than these.

(II) When the large central gear block 8 and the small central gear block 15 are to be engaged with each other, the method shown in FIG. 10a can be used, and the relational expression in this case is as follows.

It should be noted that the assembly method shown in the figure is also possible, but this is the same from the top of the relational expression as the above equation of the figure a.

(■) Center large gear block 8 and edge small gear block 1
8, five methods shown in FIGS. 11a to 11e are possible, and the relational expressions in this case are as follows.

In addition, in c, d, and e of the same figure, both gears 11 and 20 overlap slightly, but this is 10% of the radius R and r.
This is within the allowable error range and can be absorbed by the meshing of the gears 11 and 20.

By the way, we have shown above that when the dimensions of each part are set as shown in formula (1), it is possible to assemble in a total of nine ways, and the nine relational expressions above are almost satisfied, but the following In order to find out whether the above relational expression is still satisfied when the values of each x, y, and z are within the range before and after the value of the above equation (1), the values of each X t y + 2 are changed. The calculation results of the above nine equations are shown below.

First, when x, y, and z are the values of equation (1) above, and when x,
FIGS. 13 and 14 show the results when only one of y and z is changed from the value of equation (1) above.

In Figs. 13 and 14, the calculation results of each formula that fall outside the ±5% tolerance range of radius R = 3011L11L and r = 15mm are underlined.
According to these calculation results, the above 9 equations can be used to calculate the radius R and r
It can be seen that most of the results are satisfied within the error range of ±5%, a total of 10%.

Also, the above calculation results are for the case where only one of x, y, and z is changed, x = 4 ~ 6 mm, y = 6 ~ 8 mm,
If the values of x, y, and z are freely changed within the range of z=4 to 6 am, it is conceivable that there will be more cases where the above equation 9 is not satisfied.

However, it is not necessary for a block toy to be able to achieve all of the above nine assembly methods, and even if only one engagement method is satisfied for each of the above combinations (■) to (■) of gear blocks. It is thought that a very interesting block toy can be constructed.

Figure 15 shows (1) when x, y, and z are variously changed.
-1) (II-1) (■-1) calculation results are shown.

In Fig. 15, the calculation results of each formula that fall outside the tolerance range of ±5% for radii R = 30 mm and r = 15 mm are underlined, and the amount of deviation from the error range is also ( x, y, z) = (III-1 of (6°6.6)
), and based on this calculation result, in the range of x = 4 to 6 mm, y = 6 to 8 mm, and z = 4 to 6 mm, the above three formulas have a tolerance of ±5% of the radius R and r. It can be seen that almost everything is satisfied within the range.

Therefore, the above x, y, z are generally = 0°16 for 1
1~0°z4t, y=o°241(2)~0.321,
What is necessary is just to set z=0.161-0.241.

In addition, in the above figure 13.14.15, R=30mvt1r
= 15im, we checked whether the calculation results of each formula were within the ±5% error range of these R and r. When set to a certain value, x.

Calculate the values of the above 9 or 3 formulas for the values of y and z, and set the values of R and r so that the calculation results of more formulas fall within the ±5% error range of R and r. Therefore, it is considered that more equations are satisfied than in the cases of FIGS. 13, 14 and 15 above.

Also, the error range of ±5% and 10% in total is not a strict value, and unless it deviates too much from this 10% error range, it is not possible to implement the assembly method corresponding to the relational expression. It's probably not that difficult.

Next, methods for assembling various models using the block toy of the present invention will be explained.

Figure 12a shows an example of a train assembled using this block toy.From the right, blocks 18, 4, 4° 1.8, 4, 1
,8,1,1,1,6,1. L8.4 are sequentially connected, and a central small gear block 15 is connected above this L-shaped block 4, and a block 21 is connected to the left side thereof.

The assembly method of the end small gear block 21 at the right end in the figure and the center thick gear block 8 is shown by the formula (IIT-4
), and the center large gear block 8 on the right side of the figure is assembled to satisfy formula (1-1) in Figure 9a, and the center large gear block 8 on the left side of the figure large gear block 1
2 and the center small gear block 18 are assembled as shown in Figure 10a.
An assembly method that satisfies the equation (n-1) is adopted.

For reference, this figure is a cross-sectional view of the assembly shown in FIG. 9.

In the figure, the termination block 6 is inserted into the hollow hexagonal pillars of the central large gear block 8 at the lower left and the L-shaped block 4 at the upper right to close the openings of the hollow hexagonal pillars.

This is done by similarly inserting the termination block 6 into the hollow hexagonal pillars such as blocks 18, 4, 4° 15, etc. located at the ends of the structure imitating a train in Fig. 12a to close the openings. This is preferable from the viewpoint of aesthetics.

Note that this third block 6 is not only used for the end, but also when the openings of a hollow hexagonal column such as a standard block are facing each other, as shown in Fig. 12a. Can be used to connect both blocks.

- On the contrary, the block 21 of the force cylinder 4 is used when the cylindrical parts of standard blocks or the like are facing each other and the two blocks are connected.

When a train is constructed of blocks as shown in FIG. The large gear 11, small gear 21, and small gear 17 meshing with this large gear 11.
It rotates and is very interesting.

It is also possible to use the L-shaped block 4 to expand the block in a direction perpendicular to the plane of the paper and arrange the gears in the horizontal plane.In this case, the belt can be placed between the gears in the vertical plane and the gears in the horizontal plane. By applying this, it is possible to drive gears that are in a horizontal plane.

It is also possible to attach a propeller, windmill, merry-go-round, etc. in place of the gear on the opposite side of the gear used for driving or driven gear of each gear block, and rotate these. Instead, by attaching a hand-cranked bundle and turning it, you can run structures such as trains or rotate other gears.

Furthermore, a belt may be placed between a gear that is not in contact with the floor and a gear that is in the same plane and does not mesh with this gear to drive the gear. There are many ways to play with it.

Furthermore, the block toy of the present invention has the following effects in addition to these effects.

In other words, since the first to fourth blocks and the three types of gear blocks have the same length, width, and height of each hollow hexagonal column, the gear blocks (■) to (■) above are the same. As you can see from the explanation of how the pieces mesh together, the blocks can be assembled very compactly.

Moreover, when the blocks are assembled in this way, the side or back surfaces of each hollow hexagonal column are continuous with each other to form a wide plane, and the ridgelines of the hollow hexagonal columns are also sequentially continuous, resulting in the overall shape of the assembled hollow hexagonal column. It is geometrically beautiful, including these continuous planes and ridge lines, strongly attracting children's interest, and can also cultivate children's aesthetic sense.

Furthermore, each block is connected to each other by fitting the cylindrical part 3 into the hollow hexagonal pillar 2, so that the outer surface of the cylindrical part 3 and the inner surface of the hollow hexagonal pillar 2 are as shown in FIG. Since there is no surface contact unlike in the case of circular-to-circular fitting, it can be easily inserted and removed, and it is less likely to wear out even if used for a long period of time.

Furthermore, unlike contact at only four points as in the case of fitting a circle and a square, it is possible to maintain a strong fitted state for a long time.

In the above embodiment, the cross-sectional inner and outer shapes are hexagonal in which the upper half is the upper half of a regular octagon and the lower half is the lower half of a square, and the height is the same as the base of the hexagon with the above-mentioned cross-sectional outline. We have explained the case where the first to fourth blocks and four types of gear blocks are constructed using a hollow hexagonal column with a length equal to 1, but in this case, the upper half of the inner and outer cross-sections is the upper half of a regular octagon. Instead, a hollow column having a circular upper half or generally a regular n-gon shape (n is an even number of 4 or more) may be used.

Furthermore, the cross-sectional inner and outer shapes do not have to be composed of a circle or a regular n-gon; generally, the maximum height and width of the cross-sectional outer shape is l, and the wall thickness between the cross-sectional outer shape and the cross-sectional inner shape is The minimum value is t, the cross-sectional internal shape is a shape that can fit into a cylinder with a diameter of 1 to 2 t, and it can be constructed using any hollow column body whose height is 1 to 2 t.

In addition, in addition to the first and second blocks, there are three blocks: a thick center gear block, a small center gear block, and a small gear block near the end.
The fourth invention of the present application, which is equipped with all types of gear blocks, has been described, but this also means that block building blocks can be made without necessarily having all three types of gear blocks, and how many types of gear blocks can be installed. Different block toys can be constructed depending on how the gear blocks are connected, and the number of combinations in which the gear blocks can be meshed with each other changes depending on the block toy, and the range of ways to play with it also changes accordingly.

That is, the first invention of the present application includes two or more central large gear blocks in addition to the first and second blocks, and in this case, the method of meshing the gear blocks with each other is expressed by the relational expression (I- Three methods are possible: 1) to (I-3).

Further, a second invention of the present application is one in which the block of the first invention further includes one or more central small gear blocks, and in this case, the method of meshing the gear blocks with each other is the same as that of the first invention. 4 which adds (■-1) to the 3 ways of
This method is possible.

Further, a third invention of the present application is one in which the block of the first invention is further provided with one or more small end gear blocks, and in this case, the method of meshing the gear blocks with each other is the same as that of the first invention. In three cases, (III-1) to (I
Eight methods are possible including ll-5).

A fourth invention of the present application further includes one or more center small gear blocks and one or more end small gear blocks in addition to the block of the first invention, and in this case, the meshing method is All nine methods described above are possible.

In the first to fourth inventions described above, the reason why there are two or more large gear blocks and one or more small gear blocks is because front and rear wheels are required when assembling a vehicle such as a train, so the large gear block is used as a large gear block. In this case, there are two or more.

However, in normal applications, a large number of each of the three types of gear blocks will be provided.

Furthermore, since the first invention of the present application does not have a small gear block, the number of combinations of gear blocks is reduced compared to the fourth invention, but when a structure such as a train is assembled, the gears can be used as wheels. If it is equipped with a large central gear block, the gears of the gear blocks can be moved together.

It is possible to drive and rotate other gears by meshing with the gear block, it is possible to replace one gear of the gear block with another gear such as a propeller, merry-go-round, etc., and by attaching a hand bundle to one of the shafts. Other effects such as being able to run a train are the same as in the fourth invention, and the first invention can also provide an educational and very interesting block toy.

As described above, according to the present invention, a shaft is passed through the center or near the end of the side surface of the first block, which is made up of two hollow columns each having a cylindrical portion protruding from the upper surface thereof, and a gear is attached to both ends of the first block. By fixing several types of gear blocks and making these gear blocks mesh with each other via standard blocks or L-shaped blocks, it is possible to assemble any structure, and the gears can also be used as wheels. The structure can be made to travel, and each gear can be rotated by the driving force of the gears that serve as wheels, and there are many other ways to play with it, making it a very interesting block toy. .

[Brief explanation of the drawing]

Figures 1 to 4 show the components of a block toy according to an embodiment of the fourth invention of the present application: a first (standard) brick, a second (L-shaped) block, and a third (terminal block). ) block and the fourth (connecting) block, FIG. 5 is a plan view showing the fitted state of the hollow hexagonal column and the cylindrical part of the standard block, and FIGS. 6 to 8 are the above-mentioned implementations. The central large gear block, which is a component of the example block toy,
Figures showing the small center gear block and small gear blocks near the ends, Figure 9 shows the state of assembly for interlocking the two large center gear blocks, and Figure 10 shows the large center gear block and the center gear block. FIG. 11 is a diagram showing the state of assembly for meshing the small gear block, FIG. 11 is a diagram showing the state of assembly for meshing the center large gear block and the end small gear blocks, and FIG. 12a is a diagram showing the state. A side view of a structure assembled to imitate a train using the block toy of the above embodiment, the same figure is a sectional view of a similar structure, and FIG. Figure 14 is a table showing the calculation results of R and R+r using equations (I-1) to (1-'3) (...-1) when the value of is changed. Figure 15 is a table showing the calculation results of R and R+r using formulas (III-1) to (III-5) when changing the values of x, y, and z. FIG. 3 is a table showing the calculation results of R and R+r using the three formulas (I-1) to (■-1) when the value of is changed. 1...First block, 2...Hollow hexagonal column, 3...Cylindrical portion, 4...Second block, 5... ...Other hollow hexagonal prisms, 8...
...Central large gear block, 9...Square side, 9a...Vertical center line, 9b...Curved top side, 9c...
... Left side, 10 ... Axis, 11 ...
...Large gear, 15...Center small gear block, 1
6...Axis, 17...Small gear, 18...
...End small gear block, 19...Shaft, 2
0...Small gear.

Claims (1)

[Claims] 1 The maximum height and width of the cross-sectional outer shape is l, the minimum wall thickness between the cross-sectional outer shape and the inner cross-sectional shape is t, and the inner cross-sectional shape has a diameter of 1.
- Two hollow cylinders with a height of 1 and having a shape that can fit into a 2t cylinder are joined together by their side walls, and a cylinder part with a diameter of 1-2t and a height smaller than the above length l is formed as above. A plurality of first blocks integrally protruding from the upper surface of each hollow columnar body, and a plurality of other hollow columnar bodies joined and integrated to the back wall of each hollow columnar body of the first block. and the vertical center line of the side square of the hollow column of the first block, and an axis passing through the hollow column at a position x (0<x<1) from the upper side of the upper limb square. is inserted into both ends of this shaft with radius R (
A block toy characterized by comprising a plurality of central large gear blocks to which the large gears of >1) are fixed. 2. The block toy according to claim 1, wherein the values of x and R satisfy the following formula within a tolerance range of 10% of the radius R. 3. The block toy according to claim 1, wherein each of the values of X is 0.161 to 0.241. 4 The maximum height and width of the cross-sectional outer shape is 1, the minimum wall thickness between the cross-sectional outer shape and the inner cross-sectional shape is t, and the inner cross-sectional shape has a diameter of 1.
- Two hollow cylinders with a height of 1 and having a shape that can fit into a 2t cylinder are integrated by joining their side walls, and the height is smaller than the above length I, and the diameter of the cylinder is 1-2t. A plurality of first blocks integrally protruding from the upper surface of each hollow columnar body, and a plurality of other hollow columnar bodies joined and integrated to the back wall of each hollow columnar body of the first block. and the vertical center line of the side square of the hollow column of the first block, and an axis passing through the hollow column at a position x (0<x<1) from the upper side of the upper limb square. Insert the radius R (>1) at both ends of this shaft.
A plurality of upper center large gear blocks to which large gears are fixed, and one or more center small gear blocks to which small gears with radius r (<1) are fixed to both ends of a shaft inserted at the same position as the center large gear blocks. A block toy characterized by being equipped with. 5. The block toy according to claim 4, wherein the values of x, R, and r satisfy the following two equations within a tolerance range of 10% of radius R. 6. The block toy according to claim 4, wherein the value of X is 0.161 to 0.241. 7 The maximum height and width of the cross-sectional outside shape is l, the minimum wall thickness between the cross-sectional outside shape and the cross-sectional inside shape is t, and the cross-sectional inside shape has a diameter of 1.
- Two hollow cylinders with a height of 1 and having a shape that can fit into a 2t cylinder are joined together by their side walls, and the height is smaller than the above length 1, and the diameter of the cylinder is 1-2t. A plurality of first blocks integrally protruding from the upper surface of each hollow columnar body, and a plurality of other hollow columnar bodies joined and integrated to the back wall of each hollow columnar body of the first flock. and an axis passing through the hollow column at a position x (0<x<1) from the upper side of the square on the vertical center line of the side square of the hollow column of the first block. is inserted into both ends of this shaft with radius R (>
1) multiple central large gear blocks to which large gears are fixed;
y (0<y×1) from the top side of the side square of the hollow hexagonal prism of the first block, z from the left side (0<z<l/
A shaft is inserted through the hollow column at the position 2tZZy), and a small gear with a radius r (<1) is fixed to both ends of this shaft.
A block toy characterized by comprising at least one small gear block near the edge. 8 The values of x, y, z, R, r above are the radius R of the following two equations.
8. The block toy according to claim 7, wherein r and r are satisfied within a tolerance range of 10%. 9 The values of X, y, and z above are 0.161 to 0.241°0
．． The block toy according to claim 7, characterized in that the particle size is 241 to 0.321 and 0.161 to 0.241. 10 The maximum value of the height and width of the cross-sectional outer shape is 11 The minimum value of the wall thickness between the cross-sectional outer shape and the cross-sectional inner shape is t, the inner cross-sectional shape is a shape that can fit into a cylinder with a diameter of 1-2 t, and the height is Two hollow columns of 1 are integrated by joining their side walls, and a cylindrical portion with a diameter of 1 to 2 t whose height is smaller than the length 1 is integrally provided on the upper surface of each of the hollow columns. , a plurality of first blocks, a plurality of second blocks in which other hollow columns are joined to the back wall of each hollow column of the first block, and the first block A shaft is inserted through the hollow pillar at a position x (0<x<1) from the upper side of the square on the vertical center line of the side square of the hollow pillar, and a radius R is attached to both ends of this shaft.
A plurality of central large gear blocks to which large gears (>1) are fixed, and one or more central large gear blocks to which small gears of radius r (<1) are fixed to both ends of a shaft inserted at the same position as the central large gear blocks. At a position y (0<y<I) from the upper side of the side square of the hollow hexagonal prism of the small gear block and the first block and Z (0<z<I/2.z\y) from the left side. A shaft is inserted through the hollow columnar body, and the radius r (〈I
1. A block toy characterized by comprising one or more end small gear blocks to which small gears of ) are fixed. 11. The block toy according to claim 10, wherein the values of Z, y, z, and R2r satisfy the following three equations within a tolerance range of 10% for radius R and r. 12. The block toy according to claim 10, wherein the values of X, y, and z are 0.161 to 0.241 degrees and 0.241 to 0.32110.161 to 0.241.