Assembly cell for assembling three-dimensional object

Abstract

Disclosed is an assembly cell for assembling a three-dimensional object, in which a rotatable angle range between main bodies connected to each other is significantly increased as compared with the prior art, due to inclined surfaces at the edges of the main bodies. The assembly cell for assembling a three-dimensional object comprises: main bodies each forming an equilateral polygon; a connection assembly unit provided with cylinder heads which are installed at intervals on the sides of the main body and arranged to have a coaxial shaft; and cylinder head mounting portions which are arranged at both sides of the cylinder head located at one edge and provide a space in which an object having the same shape as the cylinder head can be coupled.

Description

Assembly cell for assembling 3D objects

[0001] The present invention relates to an improvement of an assembly cell, and more particularly, to an improvement of an assembly cell for assembling three-dimensional objects.

[0002] Living things, materials, and artificial objects (hereinafter collectively referred to as "objects") in the world each possess diverse and unique characteristics. The external beauty of these objects has been considered a magnificent aesthetic object, and humanity has created a variety of works through aesthetic activities such as art and religion. Today, these objects are increasingly being manufactured into high-quality assembled products using plastics and paper, enhancing their utility for toys, art, education, and commercial purposes.

[0003] All objects are composed of small and diverse unit cells, which are the fundamental elements necessary to replicate the external appearance of objects. For example, a television is a representative two-dimensional image device that displays various objects using a large number of tiny pixels. As a simple example, referring to Figure 1, if regular polygons (regular triangles, squares, regular pentagons, regular hexagons, regular heptagons, regular octagons, etc.) with all sides of the same length can be connected like pixels as unit cells, it would also be possible to replicate three-dimensional objects. In other words, in order to connect adjacent regular polygonal cells, all side lengths must be the same. This is called an equilateral polygon (ELP), which includes regular polygons and star polygons.

[0004] Dice are three-dimensional objects made up of isosceles polygons of the same shape, and there are five different types. That is, the tetrahedron is made up of four equilateral triangles, the cube is made up of six squares, the octahedron is made up of eight equilateral triangles, the dodecahedron is made up of twelve pentagons, and the icosahedron is made up of twenty equilateral triangular cells. Furthermore, a soccer ball, which is made up of twelve pentagonal cells and twenty hexagonal cells, is an example of a mixture of two types of isosceles polygons. This suggests that the appearance of simple objects can be simulated by combining one or more types of isosceles polygon (ELP) cells in planar and curved surfaces. Furthermore, by optimizing the size and shape of the equilateral polygonal cells and, in some cases, designing the system to be compatible with cells of special shapes other than equilateral polygons (hereinafter, “special-shaped cells”), and combining them with equilateral polygonal assembly cells, it will be possible to expand to more complex objects.

[0005] As a prior art of the concept of horizontal expansion of such equilateral polygonal assembly cells, a block toy that assembles a three-dimensional object by connecting equilateral triangle and square block faces, etc., was proposed in the U.S. Patent No. 4,055,019 (Title of the invention: Assembly-type toy and components thereof, Inventor: Edward Henry Harvey) and the utility model registration number 20-141302 (Title of the invention: Assembly-type block teaching material, Inventor: Yong-Woo Yoo).

[0006] However, in the case of the above conventional technology, there is a limitation in expanding and transforming various three-dimensional objects into various shapes or angles.

[0007] The purpose of the present invention is to provide an assembly cell for assembling three-dimensional objects that can assemble a wider variety of three-dimensional objects by increasing the range of rotational angles between neighboring assembly cells.

[0008] Another object of the present invention is to provide an assembly cell for assembling three-dimensional objects that can reduce the gap between adjacent assembly cell main bodies and increase aesthetic value.

[0009] Another object of the present invention is to provide an assembly cell for assembling three-dimensional objects, which can diversify the structure to prevent the assembled assembly cell from being separated.

[0010] An assembly cell for assembling a three-dimensional object according to the present invention comprises: a main body portion forming a polygon; a connecting assembly portion having a cylinder head arranged to have a hollow axis at a distance from a side of the main body portion; and a cylinder head mounting portion providing a space on both sides of the cylinder head at one edge to which a thing of the same shape as the cylinder head can be coupled, wherein when coupled, the connecting assembly portion and the cylinder head mounting portion are arranged opposite to each other so as to be rotatably coupled to each other.

[0011] The above main body has an inclined surface that gradually reduces the thickness of the main body from the center to the outside, and the inclined surface increases the rotational angular range of the two adjacent assembly cells for assembling three-dimensional objects.

[0012] The above connecting assembly includes a neck portion connecting the cylinder head to the main body portion, and it is preferable that a groove is formed on an edge of the main body portion facing the cylinder head mounting portion to increase a rotational angular range of the neck portion by accommodating a portion of the neck portion.

[0013] The above connecting assembly and the cylinder head mounting portion are preferably installed on each side of the main body portion, and the neck portion is preferably connected to the main body portion from inside the outermost edge of the main body portion.

[0014] The cylinder head is provided with anti-separation means, and the anti-separation means preferably includes at least one of: a) a convex rotation support protrusion formed on one surface of the cylinder head on one side, and a concave rotation support groove having a shape corresponding to the convex rotation support protrusion formed on one surface of the cylinder head on the other side contacting the surface, that is, a concavo-convex anti-separation means; b) a pin-type anti-separation means in which a shaft hole is formed in the cylinder head and a rotation support pin is coupled to the shaft hole; and c) a magnet-type anti-separation means in which a magnet is inserted inside the cylinder head. The above three anti-separation means will be described in detail later.

[0015] According to the present invention, due to the inclined surfaces at the edges of the main body part, the range of rotatable angles between the main body parts connected to each other is significantly increased compared to the conventional ones.

[0016] According to the present invention, since the neck part connects the cylinder head deep inside the main body part, the distance between the main body parts can be reduced while efficiently supporting the cylinder head.

[0017] According to the present invention, a U-shaped groove is formed at the edge of the main body part facing the cylinder head mounting part, and by allowing the neck part to pass between the inclined surface of the relative assembly cell and the U-shaped groove during rotation, the range of rotatable angles of the main body part can be further increased.

[0018] According to the present invention, three anti-separation means (concavo-convex type, pin type, and magnet type) are provided so that the assembly cells for three-dimensional object assembly connected to each other can rotate smoothly without separation, and the method can be variously selected according to the usage or purpose of the three-dimensional object to be assembled.

[0019] FIG. 1 is a diagram showing examples of equilateral polygons.

[0020] FIG. 2 is a photograph showing an example (cube) of a three-dimensional object made using an assembly cell for three-dimensional object assembly according to the present invention.

[0021] Figure 3 is an expanded photograph of the three-dimensional object of Figure 2.

[0022] Figure 4 is a photograph showing another example of a three-dimensional object (icosahedron) made using an assembly cell for assembling three-dimensional objects according to the present invention.

[0023] FIG. 5 is a photograph showing another example (sphere) of a three-dimensional object made using an assembly cell for assembling three-dimensional objects according to the present invention.

[0024] FIG. 6 is a photograph showing another example of a three-dimensional object (ceramic) made using an assembly cell for assembling three-dimensional objects according to the present invention.

[0025] Figure 7 is an enlarged view showing the vicinity of the connecting assembly (130) and the cylinder head mounting portion (150).

[0026] Fig. 8 is a partially enlarged view showing a state for connecting assembly cells (regular triangles and regular squares) for assembling three-dimensional objects of different shapes having a connecting assembly part (130) and a cylinder head mounting part (150) of Fig. 7.

[0027] Fig. 9 is a partially enlarged view showing an example of a protruding separation prevention means formed on a cylinder head (132).

[0028] Figure 10 is a perspective view showing an example in which a small built-in connecting assembly part (130s) is built into the center of the assembly cell to enable the assembly cell for assembling three-dimensional objects to be folded.

[0029] Figure 11 is a perspective view showing a state in which assembly cells for assembling three-dimensional objects of different shapes rotate around the hollow axis of the cylinder head.

[0030] Figure 12 is a partially enlarged view showing another example of a pin-type separation prevention means installed in the cylinder head of two assembly cells.

[0031] Figure 13 is a partially enlarged view illustrating another example of a magnetic separation prevention means installed in a cylinder head.

[0032] 100: Assembly cell for assembling 3D objects 110: Main body

[0033] 112: Slope 114: Home

[0034] 116: Through hole 130: Connecting assembly

[0035] 130s: Built-in connecting assembly 132: Cylinder head 132a: Hollow shaft 133: Neck 135: Separation prevention means 135a: Convex rotation support projection 135b: Concave rotation support groove 135c: Shaft hole 135d: Rotation support pin 135e: Magnet 135f: Magnet mounting groove 150: Cylinder head mounting part 200: 3D object N: N pole S: S pole

[0036] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0037] FIG. 2 and FIG. 3 show assembling a cubic 3D object (200) using six square 3D object assembly cells (100, also referred to as “assembly cells (100)” hereinafter for convenience of explanation) manufactured by a 3D printer according to the present invention.

[0038] An assembly cell (100) for assembling a three-dimensional object has a main body (110) having a polygonal shape, a connecting assembly part (130; sections S1 and S3, see FIG. 7) having a cylinder head (132), and a cylinder head mounting part (150; sections S2 and S4, see FIG. 7). The configurations of the connecting assembly part (130) and the cylinder head mounting part (150) will be described in more detail later.

[0039] Accordingly, when the three-dimensional object assembly cells (100) according to the present invention face each other with their front faces facing each other, the connecting assembly part (130) and the cylinder head mounting part (150) are naturally arranged in the opposite left and right directions as if they were adjacent. This is similar to the principle that when I face the other person, the other person's right side is located on my left. According to this principle of left-right symmetry, the connecting assembly part (130) of the three-dimensional object assembly cells (100) is necessarily located on the cylinder head mounting part (150) of the neighboring counterpart assembly cell (100), so that neighboring three-dimensional object assembly cells can be rotatably coupled to each other.

[0040] That is, in FIGS. 2 and 3, the square 3D object assembly cells (100) are assembled together as shown in FIG. 3, and then the 3D object assembly cells (100) are rotated by 90 degrees each time to assemble adjacent ones, thereby completing a 3D object (200) in the shape of a cube as shown in FIG. 2.

[0041] Fig. 4 shows an assembly of a regular icosahedron three-dimensional object (200) using an assembly cell (100) for assembling three-dimensional objects of 20 equilateral triangles. The assembly cell (100) for assembling three-dimensional objects of this embodiment is configured with a main body (110) of equilateral triangles, a connecting assembly part (130) installed on each of three sides of the main body (110), and a cylinder head mounting part (150).

[0042] FIG. 5 shows a 3D object (200) in the shape of a round sphere assembled using 20 3D object assembly cells (100) each of which has an acute angle of 30° / 150° (hereinafter referred to as 30° rhombuses) and 10 45° / 135° rhombuses (hereinafter referred to as 45° rhombuses). Referring also to FIG. 10, geometrically, a rhombus is a shape formed by attaching two isosceles triangles. In this embodiment, the center of the 3D object assembly cell (100) is cut off and a small built-in connecting assembly part (130s) is built in, thereby enabling the connected isosceles triangle assembly cells on both sides to rotate with respect to each other. This rhombus isosceles polygon assembly cell (100) can be viewed as a unique assembly cell in which half of the assembly cell (100) can rotate based on the center. On the other hand, in the present invention, an assembly cell (100) for assembling three-dimensional objects that rotatably connects the interior of an equilateral polygon can also be used for assembling three-dimensional objects. This is also included in the technical concept of the present invention.

[0043] Fig. 6 shows a porcelain-shaped three-dimensional object (200) assembled using three-dimensional object assembly cells (100a, 100b, 100c) having different shapes. The three-dimensional object (200) shown in Fig. 6 is made using a square three-dimensional object assembly cell (100a), a regular triangle three-dimensional object assembly cell (100b), a 30° rhombus and an isosceles triangle obtained by dividing the rhombus in half a three-dimensional object assembly cell (100c), and although not visible in Fig. 6, a regular pentagon three-dimensional object assembly cell forms the bottom.

[0044] That is, in the present invention, assembly cells (100a, 100b, 100c, etc.) for assembling three-dimensional objects of different shapes can be assembled together to form a three-dimensional object (200).

[0045] Referring to FIGS. 7 to 13, the configuration of the main body (110), the connecting assembly part (130), and the cylinder head mounting part (150) constituting the assembly cell (100) for assembling three-dimensional objects according to the invention can be seen in more detail. According to the invention, the assembly cell (100) for assembling three-dimensional objects strictly distinguishes between the front and the back. When viewed from the state where the cylinder head (132) is arranged above the main body (100) as shown in FIG. 7, the main body (110) is divided into four sections from left to right, sections S1 to S4, and the connecting assembly part (130) with the cylinder head (132) is located in the odd sections S1 and S3, whereas the cylinder head mounting part (150) without the cylinder head is located in the even sections S2 and S4. That is, when the assembly cell (100) for assembling a three-dimensional object is arbitrarily placed, if the cylinder head (132) is located in an odd section, the surface of the assembly cell (100) is the front surface, and conversely, if the cylinder head (132) is located in an even section, the surface of the assembly cell (100) is the back surface. Unless otherwise specified, the description of the surface of the assembly cell (100) is described based on the front surface.

[0046] As shown in FIGS. 7 and 8, an inclined surface (112) is formed on the edge of the main body (110) so that the thickness of the main body (110) gradually decreases as it goes outward. This inclined surface (112) is a characteristic part of the present invention, and serves to increase the rotational angular range of the two 3D object assembly cells (100) that are connected to each other through the connecting assembly part (130) and the cylinder head mounting part (150). In addition, the inclined surface (112) also serves to reduce the weight and save materials of the 3D object assembly cell (100). In addition, grooves or holes for weight reduction may be formed in various shapes in the main body (110), which will be described in more detail later.

[0047] As illustrated, the cylinder heads (132) constituting the connecting assembly (130) are installed at intervals on the sides of the main body (110), and, as illustrated in FIG. 11, are arranged on the same line to have the same rotation center or common rotation center axis, i.e., a hollow axis (132a). In addition, the connecting assembly (130) has a neck (133) that connects the cylinder head (132) to the main body (110). In this embodiment, the neck (133) has a modified cone shape. Preferably, the neck (133) is connected to the main body (110) from inside the outermost edge of the main body (110). In addition, preferably, a part of the cylinder head (132) is arranged from inside the outermost edge of the main body (110). In this way, when combined with neighboring assembly cells, the neck (133) not only firmly supports the cylinder head (132) so that it does not fall off from the main body (110) and secures elasticity so that the cylinder head (132) returns to its original position, but also minimizes the gap between neighboring main bodies (110) to increase the aesthetic value of the main body (110) itself.

[0048] The cylinder head mounting portion (150) is positioned at even sections S2 and S4, respectively, with the cylinder head (132) of one edge interposed therebetween. The cylinder head mounting portion (150) provides a space into which the cylinder head (132) of the assembly cell (100) for assembling other three-dimensional objects can be coupled.

[0049] The cylinder head mounting portion (150) has the same width as the cylinder head (132) and includes a U-shaped groove (114) structure that is formed deeper inward than the outermost edge of the main body portion (110). This groove (114) accommodates a part of the neck (133) of another three-dimensional object assembly cell (100), thereby increasing the rotational angular range of the neighboring three-dimensional object assembly cell (100). In addition, this groove (114) can also serve to support two three-dimensional object assembly cells (100) that are connected to each other at a specific rotation angle by allowing a part of the neck (133) to be inserted and settled, thereby allowing a stable assembly state to be maintained.

[0050] The above-mentioned connecting assembly (130), cylinder head mounting portion (150), and groove (114) are each installed on each side of the main body (110).

[0051] Referring to Fig. 8, three-dimensional object assembly cells (100) of different shapes can be rotatably coupled to each other through the connecting assembly part (130) and the cylinder head mounting part (150) described above. The inclined surface (112) formed at the edge of the main body part (110) increases the rotational angular range of the two three-dimensional object assembly cells (100), thereby reducing the surface angle (θ) between the two three-dimensional object assembly cells (100), as shown in Fig. 11.

[0052] Referring to FIGS. 7 and 8, the two cylinder heads (132) of the assembly cell (100) for assembling a three-dimensional object are placed between the two cylinder heads (132) of another three-dimensional object assembling cell (100), so that a weak assembly state can be maintained by the frictional force between the four cylinder heads (132).

[0053] Referring to FIGS. 9 to 11, the cylinder head (132) may be provided with a separation prevention means (135). As in the previous embodiment, the cylinder heads (132) can be maintained in an assembled state by friction between them, but their shape can easily collapse when a small external force is applied. Therefore, for a more durable connection, it is preferable to form or install a separation prevention means (135) on the cylinder head (132).

[0054] FIGS. 9 to 11 all show a protruding separation prevention means (135), and in the assembly cell (100) for assembling three-dimensional objects, cylinder heads (132) are positioned in sections S1 and S3, respectively. A convex rotation support protrusion (135a) is formed on the right surface of the section S1 cylinder head (132), whereas a concave rotation support groove (135b) having a shape corresponding to the convex rotation support protrusion (135a) is formed on the right surface of the section S3 cylinder head (132). That is, the convex rotation support protrusion (135a) on the right surface of the section S1 cylinder head (132) is in contact with section S2, whereas the concave rotation support groove (135b) on the right surface of the section S4 cylinder head (132) is in contact with section S4. Meanwhile, in sections S2 and S4 of the assembly cell (100) for assembling three-dimensional objects, where the cylinder head of the opposing assembly cell (100) is mounted, a concave rotation support groove (135b) and a convex rotation support protrusion (135a) are always positioned, respectively. To summarize, the convex rotation support protrusion (135a) of the assembly cell (100) is in contact with the concave rotation support groove (135b) of the opposing assembly cell, whereas the concave rotation support groove (135b) of the assembly cell (100) is in contact with the convex rotation support protrusion (135a) of the opposing assembly cell. Therefore, the combination of the protruding structures at these two locations forms a desirable separation prevention means (135) by preventing the four cylinder heads from being separated from the axis.

[0055] An example of using the uneven combination of the convex rotation support protrusion (135a) and the concave rotation support groove (135b) as shown in Fig. 9 can be seen in Figs. 10 and 11.

[0056] Fig. 10 shows the assembly cells (100) for assembling three-dimensional objects in the shape of a 30° rhombus and a 45° rhombus, and Fig. 11 shows the assembly cells (100) for assembling three-dimensional objects in the shape of a square and an equilateral triangle, respectively.

[0057] That is, the assembly cell (100) for assembling three-dimensional objects according to the present invention can assemble not only assembly cells (100) having the same shape as each other, but also those having different shapes as shown in FIGS. 10 and 11, by using a connecting assembly part (130) having a cylinder head (132) as shown in FIG. 9 and a cylinder head mounting part (150). Grooves or holes (116) for weight reduction may be formed in the main body part (110). The rest is as described above.

[0058] Referring to Fig. 12, the pin-type separation prevention means (135) may be configured such that an axial hole (135c) is formed in the cylinder head (132) and a rotation support pin (135d) is coupled to the axial hole (135c). In this case, too, parts of the same shape may be connected or parts of different shapes may be connected. The remainder is as described above.

[0059] Referring to Fig. 13, the magnetic separation prevention means (135) can be configured such that a strong magnet (135e) is inserted into the inside of the cylinder head (132), and each cylinder head has a space in the center where a cylindrical magnet can be inserted. In this case, the polarity arrangement of the strong magnets (135e) in the two cylinder heads (132) of the same three-dimensional object assembly cell (100) is very important. In Fig. 13, each cylinder head is depicted semi-transparently to indicate the polarity of the strong magnets (135e) arranged therein, and the arrangement method is similar to the above-mentioned uneven type. That is, the S pole of the right surface of the section S1 cylinder head is made to contact the section S2, whereas the N pole of the right surface of the section S3 cylinder head is made to contact the section S4. Therefore, when combined with the neighboring three-dimensional assembly cells (100), magnetic attraction is formed at the contact portions of sections S1 and S2, and at the contact portions of sections S3 and S4 because different polarities meet. For this reason, the two neighboring assembly cells (100) are attracted to each other, which prevents the deviation of the hollow axis formed by the four cylinder head rows. On the other hand, the contact portions of the above-mentioned sections S2 and S3 inevitably face each other with the same poles, so that they repel each other in contrast to the contact portions of the above-mentioned two sections (sections S1 and S2, and sections S3 and S4). Therefore, the position of the magnet (135e) is biasedly arranged so as to be as far away as possible within the cylinder head (132). That is, as shown in FIG. 13, the two magnets (135e) at the contact portions of sections S2 and S3 have the same S poles facing each other at a distance from each other, so a relatively weak magnetic repulsion is generated, which does not significantly affect the overall axis deviation.

[0060] The present invention will be described in more detail with reference to FIGS. 2 to 13. The core of the present invention is that the main body (110) of isosceles polygons was designed in consideration of aesthetic effects and practicality, and the connecting assembly part (130) and the cylinder head mounting part (150) described above were developed as a joining system that can freely join them in three dimensions. The present invention proposes a method of simulating a three-dimensional object mainly using isosceles polygonal unit cells, and proposes three joining systems for joining them. Of course, non-isosceles polygonal unit cells are also utilized when necessary. Hereinafter, isosceles polygonal unit cells and non-isosceles polygonal polygonal unit cells are collectively referred to as an assembly cell (100) for assembling a three-dimensional object. For convenience of explanation, the assembly cell (100) for assembling a three-dimensional object is also referred to as an assembly cell or an isosceles polygonal cell.

[0061] In maintaining the shape of a three-dimensional object (200) made of assembly cells (100) for assembling three-dimensional objects, the weight of the main body (110) is one of the important factors. In order to reduce the weight of the main body (110), it would seem advantageous to make the thickness of the main body (100) thin; however, the joint portion attached to the main body (110) is easily broken or deformed during or after the completion of the object. The optimal thickness of the main body (110) varies depending on the type and properties of the material medium, and external forces acting at various angles during the bonding must also be comprehensively considered.

[0062] One way to reduce the weight of the assembly cell is to create a pattern by forming grooves or holes (116) inside the main body (110), as shown in FIGS. 10 and 11. This method not only facilitates airflow inside and outside the object, but also increases the aesthetic effect of the main body (110) by creating various patterns according to the polygon.

[0063] Another way to reduce the weight of an equilateral polygonal cell or assembly cell is to divide the main body (110) into a central portion and a peripheral portion and vary the thickness thereof. This method involves providing an inclined surface (112) at a certain angle at the peripheral portion of the side of the main body (110), as shown in FIGS. 7, 8, 10, and 11.

[0064] In the present invention, another feature of the inclined surface (112) is to increase the angle at which two three-dimensional object assembly cells (100) can be folded when they are combined. The neighboring three-dimensional object assembly cells (100) have a common rotation axis at the joint, a hollow axis (132a), as shown in Fig. 11. If the distance Rx between the hollow axis (132a) and the side of the main body (110) is small, the space for the main body (110) to rotate may be insufficient, which may limit the angle at which it can be folded. On the other hand, the distance R X When the is large, the rotational angular range (360°-2θ) at which the two cell bodies can be folded also increases. However, in this case, the distance between the main body parts (110) increases by two times, which not only reduces the aesthetic value but also increases the angular momentum moment (Angular Momentum: distance (R) with respect to the hollow axis (132a) X ) and the product of the weight of the assembled cell) increases, ultimately reducing the stability of the completed object. The inclined surface (112) described above in the present invention provides space for two adjacent equilateral polygonal cells to sufficiently fold, and plays an important role in increasing the range of possible rotation angles.

[0065] That is, the inclined surface (112) formed along the main body (110) increases the angle at which the main body (110) can rotate, thereby enabling a variety of three-dimensional objects with sharp angles to be simulated.

[0066] For convenience of explanation, the assembly cell (100) for assembling a three-dimensional object can be divided into a front side and a back side. As shown in Fig. 7, when viewed from the perspective of the state in which the cylinder head (132) is positioned above the main body (100), if the connecting assembly part (130) is located at the far left of the upper side of the main body (110), it is the front side of the assembly cell (100), and conversely, if the cylinder head mounting part (150) is located, it is the back side of the assembly cell (100).

[0067] In the present invention, when the same separation prevention means (135) is provided, the size and structure of the connection assembly part (130) and the cylinder head mounting part (150) of the assembly cell (100) for assembling a three-dimensional object are the same regardless of the shape of the equilateral polygon. This means that, as long as the separation prevention means (135) are the same, all the assembly cells (100) for assembling a three-dimensional object can assemble a three-dimensional object (200) and imitate the external shape as long as the front and back sides are clearly distinguished and combined regardless of the shape of the equilateral polygon.

[0068] The key devices for easily combining the assembly cell (100) for assembling 3D objects are the connecting assembly part (130) having a plurality of cylinder heads (132) forming a connecting part located at each side and the cylinder head mounting part (150). Referring to FIGS. 7 to 9, the cylinder head (132) has a diameter and a length of D, respectively. H Wow L H As such, it serves to connect the main body (110) of one side of the assembly cell and the main body (110) of the other side. As shown in Fig. 7, cylinder heads (132) are respectively arranged at the positions of sections S1 and S3, whereas cylinder head mounting portions (150) in the form of concave grooves are arranged in sections S2 and S4 without cylinder heads (132). The cylinder heads (132) of sections S1 and S3 are respectively connected to the main body (110) through neck portions (133). On the other hand, cylinder head mounting portions (150) are arranged in sections S2 and S4, and a U-shaped concave groove (114) is formed in the main body (110) of the corresponding portions.

[0069] Meanwhile, as illustrated in FIG. 8, when the three-dimensional object assembly cell (100) placed at the bottom faces another assembly cell (upper), sections S1, S2, S3, and S4 of the lower assembly cell are always arranged to correspond to sections S4, S3, S2, and S1 of the upper assembly cell (100), respectively. That is, in FIG. 8, the connecting assembly parts (130, odd-numbered sections) and cylinder head mounting parts (150, even-numbered sections) of the upper and lower assembly cells always meet in opposite directions, thereby demonstrating the principle of coupling of the two upper and lower three-dimensional object assembly cells (100). This is the principle of left-right symmetry, and is the same as when I and the other person face each other, my left side is located on the other person's right side.

[0070] As described above, in the two assembly cells (100) for assembling three-dimensional objects, when the cylinder heads (132) of the facing sides are combined with each other, they are positioned side by side on the hollow axis (132a) as shown in FIG. 11. When the two assembly cells (100) for assembling three-dimensional objects are combined, the two assembly cells can be folded or unfolded with this hollow axis (132a) as the center, and at this time, an interfacial angle (θ) is formed between the two assembly cells (100) for assembling three-dimensional objects. At this time, the groove (114) formed in the main body (110) provides a seating space for the neck (133) of the cylinder head (132) of the opposing assembly cell when the two assembly cells are folded, thereby increasing the rotational angular range (360-2θ) so that the three-dimensional assembly cell (100) for assembling three-dimensional objects can be rotated to a range where the interfacial angle (θ) formed by the two assembly cells is minimized.

[0071] In combining assembly cells (100) for assembling three-dimensional objects, the cylinder head (132) plays a key role. However, when two assembly cells are rotated, the cylinder heads (132) may be separated from the hollow shaft (132a) solely due to the contact friction between the cylinder heads (132), and therefore, a special design is required to increase the bonding strength between the cylinder heads (132). In order to meet this need, the present invention proposes three types of separation prevention means (concave-convex type, pin type, and magnetic type), which are described in detail below.

[0072] a) Uneven separation prevention means: As shown in FIGS. 9 to 11, when any two three-dimensional object assembly cells (100) are combined, as a separation prevention means (135) between cylinder heads (132), a convex rotation support protrusion (135a) may be formed on one cylinder head (132), and a concave rotation support groove (135b) may be formed on the other cylinder head (132).

[0073] Since the convex rotation support protrusion (135a) and the concave rotation support groove (135b) are interlocked with each other and the two three-dimensional object assembly cells (100) rotate around the hollow axis (132a), the cylinder heads (132) maintain the hollow axis (132a) without detaching from it. Although the cylinder heads (132) of the two three-dimensional object assembly cells (100) are almost tightly coupled and the hollow axis (132a) can be maintained by the friction of the contact surface between the cylinder heads (132), the convex rotation support protrusion (135a) and the concave rotation support groove (135b) can be formed on the cylinder head (132) as a separation prevention means (135) to reliably prevent the cylinder head (132) from detaching from the hollow axis (132a) during rotation.

[0074] The structure of these convex rotation support protrusions (135a) and concave rotation support grooves (135b) is similar to the structure of the joints connecting the bones of the arm and shoulder of the human body. As shown in Fig. 9, a convex rotation support protrusion (135a) is formed on the right surface of the left cylinder head (132) of the lower assembly cell, but a concave rotation support groove (135b) is formed on the right surface of the right cylinder head (132). A convex rotation support protrusion (135a) is formed on the left surface of the right cylinder head (132) of the upper assembly cell, but a concave rotation support groove (135b) is formed on the left surface of the cylinder head (132) to its left. Therefore, according to the principle of left-right symmetry, the convex rotation support protrusions (135a) and the concave rotation support grooves (135b) can always be engaged with each other. The elasticity of the neck (133) connecting the cylinder head (132) to the main body (110) facilitates the joining of the cylinder heads (132) that are in contact. The cylinder head (132) structure shown in FIGS. 9 to 11 is relatively easy to join and prevents the cylinder heads (132) from being separated from the hollow shaft (132a).

[0075] Meanwhile, a rhombus can be divided into two isosceles triangles. Fig. 10 illustrates a 45° rhombus (top) and a 30° rhombus (bottom) assembly cell. In order to double the usability of each rhombus isosceles polygon assembly cell, two isosceles triangle-shaped assembly cells can be rotatably connected through a built-in connecting assembly part (130s) consisting of a small connecting assembly part (130) installed on a short side and a cylinder head mounting part (150). It is preferable to use a rotation support pin (135d) to be described later with reference to Fig. 12 for this part, and these isosceles triangles can also be used separately.

[0076] b) Pin-type separation prevention means: Referring to FIG. 12, using a rotation support pin (135d) as a separation prevention means (135) can be achieved by forming a shaft hole (135c) in the cylinder head (132) and connecting the rotation support pin (135d) to the shaft hole (135c) so that two assembly cells can be connected to rotate around the rotation support pin (135d). Although this embodiment has a somewhat cumbersome process of connecting the rotation support pin (135d), it has the advantage of being able to firmly connect the assembly cells.

[0077] c) Magnetic separation prevention means: Referring to FIG. 13, using a magnet (135e) as a separation prevention means (135) can prevent the cylinder heads (132) from being separated from the hollow shaft (132a) by forming a magnet mounting groove (135f) in the shape of a shaft hole in the cylinder head (132) and installing a strong magnet such as a neodymium magnet in the magnet mounting groove (135f) as shown in FIG. 13. In this case, the N pole (N) and S pole (S) of the magnets must be arranged separately as designed. As shown in FIG. 13, the polarities of the two permanent magnets are designed so that the contacting surfaces of the cylinder heads (132) have different polarities in contact in order to bind each other with a mutually attractive force. On the other hand, the magnets (135e) arranged left and right with respect to the left and right central portions of the assembly cell are arranged so that their polarities meet and are as far apart as possible in order to efficiently preserve the magnetic force. In this part, the S poles (S) of the same polarity are arranged facing each other, so that a magnetic repulsive force acts to repel each other. Therefore, as shown in Fig. 13, the two magnets (135e) are arranged so that they are sufficiently spaced apart from each other so that a repulsive force acts that is significantly smaller than the attractive force acting between magnets (135e) in different positions.

[0078] The polarity arrangement method of this magnet model is such that the hollow axis (132a) is maintained by the magnetic attraction of the N pole and S pole, so that the two assembly cells are coupled and can rotate around the hollow axis.

[0079] The present invention can be used to create a three-dimensional object assembly cell that can be assembled to simulate three-dimensional objects, enabling the creation of toys, crafts, sculptures, teaching aids, and even exhibition pieces. The utility of the present invention could be further expanded by conducting various object simulations in the future, developing and accumulating relevant information, and incorporating relevant artificial intelligence technologies.

Claims

1. Main body forming a polygon; A connecting assembly having a cylinder head arranged to have a hollow axis at a gap on the side of the main body; and A cylinder head mounting portion is provided that provides a space on both sides of the cylinder head so that something of the same shape as the cylinder head can be combined, with the cylinder head on one side being interposed. An assembly cell for assembling three-dimensional objects, characterized in that the connecting assembly and the cylinder head mounting portion are arranged in opposite directions so that they can be rotatably coupled to each other, as if their left and right sides are swapped when facing each other.

2. A three-dimensional object assembly cell, characterized in that in the first paragraph, the main body part has an inclined surface that gradually reduces the thickness of the main body part from the center to the outside, and the inclined surface increases the rotational angle range of two adjacent three-dimensional object assembly cells.

3. In the first paragraph, the connecting assembly part includes a neck part connecting the cylinder head to the main body part, and a groove is formed on an edge of the main body part facing the cylinder head mounting part to increase a rotational angular range of the neck part by accommodating a part of the neck part. An assembly cell for assembling three-dimensional objects.

4. In the third paragraph, the connecting assembly and the cylinder head mounting portion are installed on each side of the main body portion, An assembly cell for assembling a three-dimensional object, characterized in that the neck portion is connected to the main body portion from inside the outermost edge of the main body portion.

5. In the first paragraph, the cylinder head is provided with a separation prevention means, The above separation prevention means is, a) A protruding separation prevention means having a convex rotation support protrusion formed on one surface of the cylinder head on one side and a concave rotation support groove having a shape corresponding to the convex rotation support protrusion formed on one surface of the cylinder head on the other side in contact with the surface; b) a pin-type separation prevention means in which an axial hole is formed in the cylinder head and a rotation support pin is coupled to the axial hole, and c) An assembly cell for assembling a three-dimensional object, characterized in that it includes at least one magnetic separation prevention means in which a magnet is inserted inside the cylinder head.

6. In the second paragraph, the cylinder head is provided with a separation prevention means, The above separation prevention means is, a) A protruding separation prevention means having a convex rotation support protrusion formed on one surface of the cylinder head on one side and a concave rotation support groove having a shape corresponding to the convex rotation support protrusion formed on one surface of the cylinder head on the other side in contact with the surface; b) a pin-type separation prevention means in which an axial hole is formed in the cylinder head and a rotation support pin is coupled to the axial hole, and c) An assembly cell for assembling a three-dimensional object, characterized in that it includes at least one magnetic separation prevention means in which a magnet is inserted inside the cylinder head.

7. In the third paragraph, the cylinder head is provided with a separation prevention means, The above separation prevention means is, a) A protruding separation prevention means having a convex rotation support protrusion formed on one surface of the cylinder head on one side and a concave rotation support groove having a shape corresponding to the convex rotation support protrusion formed on one surface of the cylinder head on the other side in contact with the surface; b) a pin-type separation prevention means in which an axial hole is formed in the cylinder head and a rotation support pin is coupled to the axial hole, and c) An assembly cell for assembling a three-dimensional object, characterized in that it includes at least one magnetic separation prevention means in which a magnet is inserted inside the cylinder head.

8. In paragraph 4, the cylinder head is provided with a separation prevention means, The above separation prevention means is, a) A protruding separation prevention means having a convex rotation support protrusion formed on one surface of the cylinder head on one side and a concave rotation support groove having a shape corresponding to the convex rotation support protrusion formed on one surface of the cylinder head on the other side in contact with the surface; b) a pin-type separation prevention means in which an axial hole is formed in the cylinder head and a rotation support pin is coupled to the axial hole, and c) An assembly cell for assembling a three-dimensional object, characterized in that it includes at least one magnetic separation prevention means in which a magnet is inserted inside the cylinder head.

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