WO2008082271A1

WO2008082271A1 - Building block

Info

Publication number: WO2008082271A1
Application number: PCT/KR2008/000055
Authority: WO
Inventors: Kyeong-Keun Kim
Original assignee: Microrobot Co., Ltd.
Priority date: 2007-01-05
Filing date: 2008-01-04
Publication date: 2008-07-10
Also published as: KR20080064747A; KR100865078B1

Abstract

Provided is a building block in which the block can be built in various shapes and the rotation of a combined block joint is free and the shape of a finished product is firmly maintained. The building block includes: a building plate 101 which has a '+'-shaped cross-section by four wing pieces in which a polygonal hole 101 a is perforated in each of the wing pieces and at least one cut first slit 103a is formed from an outer side of the wing pieces toward its center, a connecting body 104 which is comprised of a pair of connecting bodies and in which a first combining pin 104a and a first combining hole 104b are formed and the building plate 101 and by which the building plate 101 are continuously combined with each other in a lengthwise direction, a first joint body 105 in which a cut second slit 105a is formed in the center of the first joint body 105, one wing of the building body 101 is combined with the second slit 105a, a second combining pin or a second combining hole 105b is provided at both sides of the second slit 105a and a first rotating hole 106 is formed below the second combining pin or the second combining hole 105b as one body, and a connecting piece 107 in which a third slit 107b is formed in the middle of an upper portion of the connecting piece 107 in a vertical direction and a third combining pin 107a or a third combining hole to be combined with the second combining pin or the second combining hole 105b of the first joint body 105 is formed in both sides of the third slit 107b.

Description

BUILDING BLOCK

Technical Field The present invention relates to a building block, and more particularly, to a block for building toys which can be built in various shapes and in which the rotation of a combined block joint is free and the shape of a finished product is firmly maintained.

Background Art

Building paper toys or blocks are finished by cutting or detaching parts printed on a model paper and by building the cut or detached parts according to the contents described in a description or are built in a desired model by fitting a plurality of blocks formed as parts. In former days, there were many products targeting children. However, recently, more complicated and various models of products targeting adults have been developed.

By using such building blocks, models of transporting means such as airplanes, boats, and cars, models of buildings, models of insects or animals, and models of robots etc. can be manufactured with high completeness and simply and conveniently by a fitting method.

Building paper toys are manufactured of papers. Thus, there is no almost danger of injury during a model building operation and user's initiativeness can be improved. In addition, in building paper blocks, parts used to manufacture various toys are included in one book. Thus, the building paper blocks are very low-priced compared to toys made of plastics or metals.

However, conventional building paper blocks may be easily damaged due to a property of material, and a combination force in parts playing a role of joint is weak. Thus, there is a problem that an initially-finished model may be deformed due to reduction in combination force after the model is finished.

Furthermore, a desired finished product model is shaped by a manufacturer, and thus, there is a limitation in improving user's initiativeness and imagination.

Disclosure of the Invention

The objective of the present invention is to provide a building block which is closely combined, is easily separated, can be built in various shapes and at various angles and in which a combined joint part can be rotated in various ways so that various operations can be expressed after building is completed and the building block has a good combination force after building is completed.

According to an aspect of the present invention, there is provided a building block comprising: a building plate which has a '+'-shaped cross-section by four wing pieces in which a polygonal hole is perforated in each of the wing pieces and at least one cut first slit is formed from an outer side of the wing pieces toward its center; and a connecting body which is comprised of a pair of connecting bodies and in which a first combining pin and a first combining hole are formed and by which the building plate and the building plate are continuously combined with each other in a lengthwise direction through the its polygonal hole.

According to another aspect of the present invention, there is provided a building block comprising: a first joint body in which a cut second slit is formed in the center of the first joint body, a second combining pin or a second combining hole is provided at both sides of the second slit and a first rotating hole is formed below the second combining pin or the second combining hole as one body, and a connecting piece in which a third slit is formed in the middle of an upper portion of the connecting piece in a vertical direction and a third combining pin or a third combining hole to be combined with the second combining pin or the second combining hole of the first joint body is formed in both sides of the third slit.

A plurality of fitting holes may be formed below the second slit of the first joint body, and a fitting portion corresponding to the fitting hole is protruded from a lower portion of the connecting piece, and a first guide portion formed of recesses is extended to the first rotating hole, and a second guide portion is formed at the bottom surface of the connecting piece to be combined with the first guide portion and to be guided thereto.

A plurality of fixing jaws may be formed on an inner circumference of the first rotating hole.

According to another aspect of the present invention, there is provided a building block comprising a second joint body in which a first rotating portion is protruded from one side of the second joint body and one of a second rotating hole perforated by a diameter corresponding to the first rotating portion in a direction opposite to the first rotating portion or a second rotating portion that is the same as the first rotating portion is formed.

A stopper may be protruded from an outer circumference of the first rotating portion or the second rotating portion. A cutout groove may be provided at one end of the first rotating portion or the second rotating portion.

According to another aspect of the present invention, there is provide a building block comprising a third joint body which is comprised of a pair of third joint bodies and in which a protruded rotating shaft and a fixing hole are formed at one side of the pair of third joint bodies, a fixing shaft and a fixing groove are formed between the rotating shaft and the fixing hole, a fixing hole and a rotating shaft corresponding to the rotating shaft and the fixing hole formed at one side of the pair of third joint bodies are formed at the other side of the pair of third joint bodies and a fixing groove and a fixing shaft corresponding to the fixing shaft and the fixing groove formed at one side of the pair of third joint bodies are formed, wherein the building block combines parts so that the third joint body can be rotated around the rotating shaft.

A stopper may be protruded from an outer circumference of the rotating shaft. A saw-tooth portion may be formed on a lower outer surface of the rotating shaft.

According to another aspect of the present invention, there is provide a building block comprising: a building plate which has a '+'-shaped cross-section by four wing pieces in which a polygonal hole is perforated in each of the wing pieces and at least one cut first slit is formed from an outer side of the wing pieces toward its center; a connecting body which is comprised of a pair of connecting bodies and in which a first combining pin and a first combining hole are formed and by which the building plate and the building plate are continuously combined with each other in a lengthwise direction through the polygonal hole; a first joint body in which a cut second slit is formed in the center of the first joint body, one wing of the building body is combined with the second slit, a second combining pin or a second combining hole is provided at both sides of the second slit and a first rotating hole is formed below the second combining pin or the second combining hole as one body; and a connecting piece in which a third slit is formed in the middle of an upper portion of the connecting piece in a vertical direction and a third combining pin or a third combining hole to be combined with the second combining pin or the second combining hole of the first joint body is formed in both sides of the third slit.

The building block may further comprise a second joint body in which a first rotating portion is protruded from one side of the second joint body and one of a second rotating hole perforated by a diameter corresponding to the first rotating portion in a direction opposite to the first rotating portion or a second rotating portion that is the same as the first rotating portion is formed. The building block may further comprise a third joint body which is comprised of a pair of third joint bodies and in which a protruded rotating shaft and a fixing hole are formed at one side of the pair of third joint bodies, a fixing shaft and a fixing groove are formed between the rotating shaft and the fixing hole, a fixing hole and a rotating shaft corresponding to the rotating shaft and the fixing hole formed at one side of the pair of third joint bodies are formed at the other side of the pair of third joint bodies and a fixing groove and a fixing shaft corresponding to the fixing shaft and the fixing groove formed at one side of the pair of third joint bodies are formed, wherein the first rotating hole or the second rotating hole is combined to be rotated around the rotating shaft.

Brief Description of the Drawings

FIG. 1 is a perspective view showing a structure in which a building body and a connecting body of a building block according to an embodiment of the present invention are built.

FIG. 2 is a perspective view showing a structure in which a building body, a first joint body, and a connecting piece of a building block according to an embodiment of the present invention are built. FIG. 3 is perspective view showing a structure in which a building body, a first joint body, and a second joint body including a connecting piece and a stopper of a building block according to an embodiment of the present invention are built.

FIG. 4 is perspective view showing a structure in which a building body, a first joint body, and a second joint body including a connecting piece and a cutout groove of a building block according to an embodiment of the present invention are built.

FIG. 5 is perspective view showing a structure in which a building body and a third joint body of a building block according to an embodiment of the present invention are built.

FIG. 6 is a detailed view of a third joint body of a building block according to another embodiment of the present invention.

Best mode for carrying out the Invention

Exemplary embodiments of the present invention will now be described with reference to the attached drawings.

FIG. 1 is a perspective view showing a structure in which a building body and a connecting body of a building block according to an embodiment of the present invention are built. Referring to FIG. 1 , a building body 103 according to the present invention comprises two or more building plates 101 that are continuously combined in a vertical direction. The building plates 101 are formed in a '+'-shaped cross-sectional shape and have four wings. A hole 101a having a polygonal shape (a rectangular shape according to an embodiment of FIG. 1 ) is formed in the middle of each wing, and a first slit 103a is provided in a horizontal direction toward a center axial shaft so that a jaw can be formed. Each of the building plate 101 has various lengths, and the first slit 103a is cut in one or two or more parts. Thus, a user combines the building plates 101 having different lengths to manufacture the building boy 103 having a desired height. Each of the building plates 101 is provided in different lengths, as described above. If necessary, each of the building plates 101 may be extended to a desired length by connecting different building plates 101 each other using a connecting body 104.

A pair of connecting bodies 104 are provided. A first combining pin 104a that can be inserted in the hole 101a of the building plate 101 is protruded and formed at one side of each connecting body 104 and is adjacent thereto so that a first combining hole 104b can be formed. The first combining hole 104b is formed in a position corresponding to the first combining pin 104a of the connecting bodies 104 that are combined with each other, and the first combining pin 104a corresponding to the first combining hole 104b is formed so that the connecting bodies 104 have a ^{< l}- '-shaped cross-sectional structure.

Thus, a pair of connecting bodies 104 are disposed at both sides of the two building plates 101 to face each other, as illustrated in FIG. 1 , so that the first combining pin 104a passes through the hole 101a of the building plate 101 and is inserted in the first combining hole 104b of the connecting body 104 that is opposite to the building plate 101.

In the same way, other, first combining pin 104a of the connecting body 104 passes through the hole 101a of the building plate 101 to be combined and is combined with the first combining hole 104b of the connecting body 104 that is opposite to the building plate 101 so that two building bodies 103 can be connected to each other via the connecting body 104. As such, the building plates 101 having different lengths are combined with each other using the connecting body 104 in a vertical or horizontal direction and the building body 103 is constituted. FIG. 2 is a perspective view showing a structure in which a building body, a first joint body, and a connecting piece of a building block according to an embodiment of the present invention are built. A second slit 105a is formed in the middle of an upper portion of a first joint body 105 according to the present invention so that the first joint body 105 can be fit to one wing of the building plate 101 having a '+'-shaped cross-section.

A second combining hole 105b is formed at both sides of the second slit 105a so that it can correspond to the hole 101a of the building plate 101 disposed at both sides of the second slit 105a when one wing of the building plate 101 of the building body 103 is fitted to the second slit 105a.

Here, as another embodiment of the first joint body 105, a second combining pin (not shown) that may replace the second combining hole 105b may be provided in a position in which the second combining hole 105b is formed. As such, the second combining pine can be inserted in the hole 101a of the building plate 101. A first rotating hole 106 is formed below the second slit 105a in a direction perpendicular to or parallel to the second combining pin or the second combining hole 105b. Thus, the first rotating hole 106 may be formed in various other directions than the direction perpendicular to or parallel to the second combining pin or the second combining hole 105b. Thus, the building body 103 can be built at various angles.

The first joint body 105 is combined with the building body 103 using a connecting piece 107. Thus, a third combining pin 107a (or, selectively a third combining hole) is formed in the connecting piece 107 and a third slit 107b is formed in the middle of an upper portion of the connecting piece 107 in a vertical direction in the same way as the second slit 105a so that the connecting piece 107 can be inserted and combined with the second combining hole 105b (or, selectively a second combining pin) of the first joint body 105. Thus, when the building body 103 is built in the first joint body 105, after one wing of the building plate 101 of the building body 103 is inserted in the second slit 105a of the first joint body 105, as illustrated in FIG. 2, the third combining pin 107a of the connecting piece 107 passes through the hole 101a of the building body 103 and is inserted in the second combining hole 105b of the first joint body 105 so that the building body 103 can be built in the first building body 105.

The first joint body 105 in which the second combining pin is formed and the combining piece 107 in which the third combining hole is formed are not illustrated in FIG. 2. Such configuration may be adopted in various ways according to manufacturer's intention.

The first rotating hole 106 of the first joint body 105 may be formed in a vertical and downward position in the center line of the second slit 105a and may also be formed in a downward position eccentric to one side or the other side from the center line of the second slit 105a. Other block may be built in the first joint body 105 in various structures.

A plurality of fitting holes 117 are formed in the second slit 105a of the first joint body 105, as illustrated in FIG. 2. A fitting portion 118 corresponding to the fitting hole 117 is protruded from a lower portion of the connecting piece 107 so that the first joint body 105 and the connecting piece 107 can be more firmly combined by combining the fitting portion 118 and the fitting hole 117.

Here, a first guide portion 119 formed of recesses is extended in a horizontal direction between the second slit 105a of the first joint body 105 and the first rotating hole 106 below the second slit 105a. In addition, a second guide portion 120 formed of recesses is formed on the bottom surface of the connecting piece 107 to be inserted in the first guide portion 119 and to be guided thereto. The second guide portion 120 of the connecting piece 107 is slid along the first guide portion 119 of the first joint body 105 and the fitting portion 118 is inserted in the fitting hole 117. Simultaneously, the third combining pin 107a is inserted in the hole 101a of the building plate 101 and the second combining hole 105b of the first joint body 105.

FIG. 3 is perspective view showing a structure in which a building body, a first joint body, and a second joint body including a connecting piece and a stopper of a building block according to an embodiment of the present invention are built. As illustrated in FIG. 3, in a second joint body 111 that allows other building body 103 to be built in the first joint boy 105 in various directions, a first rotating portion 108 is protruded from one side of the second joint body 111 and is inserted to be rotated in the first rotating hole 106 of the first joint body 105, and a second rotating hole 109 having the same size as the first rotating hole 106 is provided at a side opposite to the one side of the second joint body 111 in a direction perpendicular to or parallel to the first rotating portion 108.

Of course, as another embodiment, a second rotating portion 110 having the same size as the first rotating portion 108 instead of the second rotating hole 108 may be protruded (illustrated by a dotted line in FIG. 3). In particular, like that the position of the first rotating hole 106 of the first joint body 105 can be freely selected, the second rotating hole

109 or the second rotating portion 1 10 formed in the second joint body 1 1 1 may be formed in the center line of the first rotating portion 108 and may also be formed in a position eccentric to one side or the other side from the center line of the first rotating portion 108.

Thus, the second rotating hole 109 or the second rotating portion

110 of the second joint body 1 1 is formed in various positions so that the building bodies 103 can be continuously built in various shapes according to user's desired angle or azimuth.

A plurality of fixing jaws 115 are formed on inner diameter surfaces of the first and second rotating holes 106 and 109 along a circumferential direction. At least one stopper 1 16 is protruded from outer diameter surfaces of the first rotating portion 108 and the second rotating portion 1 10 that are inserted in the first rotating hole 106 and the second rotating hole 109 so that the first rotating portion 108 or the second rotating portion 1 10 that is inserted in the first rotating hole 106 or the second rotating hole 109 is prevented from being arbitrarily rotated by the weight of the building body 103. However, the height of the protruded stopper 1 16 is low, and the depth of each fixing jaws 1 15 is not large, and the building block according to the present invention is formed of plastics having elasticity. Thus, if an external force is not applied in the state where the first rotating portion 108 and the second rotating portion 110 are completely inserted in the first rotating hole 106 or the second rotating hole 109, the first rotating portion 108 or the second rotating portion 1 10 is not arbitrarily rotated by the weight of the building body 103. However, if a user applies a force in the above state, the first rotating portion 108 or the second rotating portion 110 may be rotated dϊscontinuously. FIG. 4 is perspective view showing a structure in which a building body, a first joint body, and a second joint body including a connecting piece and a cutout groove of a building block according to an embodiment of the present invention are built. The other configuration of the present embodiment except for the second joint body of the embodiment of FIG. 3 is the same and thus, only the structure of a second joint body will be described.

As illustrated in FIG. 4, comparing the second joint body 111 of the present embodiment with the second joint body 111 of FIG. 3, the second joint body 111 of the present embodiment is different from the second joint body 111 of FIG. 3 in that a '-'-shaped cutout groove 208 instead of the stopper 116 is formed at one end of the first rotating portion 108. The first rotating portion 108 in which the cutout groove 208 is formed is closely fitted to the first rotating hole 106 and is combined. The building block according to the present invention is formed of plastics and thus have elasticity. Since the first rotating portion 108 is closely accommodated in the cutout groove 208, both sides of the first rotating portion 108 divided by the cutout groove 108 elastically support the first rotating hole 106 of the first joint body 105, and the stopper 210 formed below the first rotating portion 108 is fitted to the fixing jaw 115 of the first rotating hole 106 and is combined so that the second rotating portion 111 is prevented from being arbitrarily rotated by the weight of the building body 103. If the user applies a force in the above state, the first rotating portion 108 is discontinuously rotated by a distance of the fixing jaw 115.

Of course, as another embodiment, a second rotating portion 110 having the same size as the first rotating portion 108 in which the cutout groove 208 is formed, instead of the second rotating hole 109 may be protruded (illustrated by a dotted line in FIG. 4).

FIG. 5 is perspective view showing a structure in which a building body and a third joint body of a building block according to an embodiment of the present invention are built. As illustrated in FIG. 5, a third joint body 114 in which a building body 103 can be freely rotated within a predetermined angle in the state where the building body 103 is combined with the third joint body 1 14, is provided as a pair of pieces. A rotating shaft 112 having a size at which the rotating shaft 1 12 can be inserted in the first rotating hole 106 or the second rotating hole 109 is protruded from one side of the third joint body 114, and a fixing hole 112a having a size corresponding to the rotating shaft 112 is formed in a position corresponding to the other side of the third joint body 114.

Preferably, a fixing shaft 1 13 is protruded from one side of the third joint body 114 in which the fixing hole 1 12a is formed, to be adjacent to the fixing hole 1 12a, and a fixing groove 1 13a is formed at the other side corresponding to the fixing shaft 1 13 so that the fixing shaft 1 13 of the third joint body 1 14 and the rotating shaft 112 can be inserted and combined with the fixing hole 1 12a and the fixing groove 1 13a.

In other words, a pair of third joint bodies 114 according to the present invention constitutes one group, as illustrated in FIG. 5. The third joint body 1 14 formed at one side and at the other side of the building body 103 are formed in a position in which the rotating shaft 1 12 and the fixing hole 112a correspond to each other, and the rotating shaft 1 12 formed at one side of the third joint body 1 14 is inserted and combined in the other side fixing hole 1 12a, and the rotating shaft 112 formed at the other side of the third joint body 1 14 is inserted and combined in the fixing hole 1 12a formed at one side of the third joint body 114.

The third joint body 1 14 is combined with both sides of the first rotating hole 106 or the second rotating hole 109. The building body 103 is combined in such a way that the rotating shaft 1 12 formed at one side of the third joint body 1 14 passes through the first rotating hole 106 or the second rotating hole 109 and is inserted in the fixing hole 112a of the third joint body 114 formed at the other side of the building body 114. Thus, the first joint body 105 or the second joint body 1 1 1 may be rotated centering on the first rotating hole 106 or the second rotating hole 109 combined with the rotating shaft 1 12.

Here, a stopper 214 is protruded from the outer circumference of the rotating shaft 1 12 of the third joint body 114 and is combined with the fixing jaw 1 15 of the first rotating hole 106 or the second rotating hole 109 so that the building body 103 can be prevented from being arbitrarily rotated by its weight.

FIG. 6 is a detailed view of a third joint body of a building block according to another embodiment of the present invention. Comparing the third joint body of FIG. 6 with the third joint body 1 14 of FIG. 5, a saw-tooth portion 212 is protruded from the outer circumference of a rotating shaft 1 12 so that the rotating shaft 1 12 can be prevented from being arbitrarily rotated and a combination force is increased. Preferably, a stopper 214 is provided below the saw-tooth portion 212 so that the above effect can be increased. The other configuration except for the configuration of the saw-tooth portion 212 and the stopper 214 is the same as the structure of the third joint body of FIG. 5 and thus, a description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.

Industrial Applicability In the building block having the above structure according to the present invention, a connecting body, a first joint body, a connecting piece, a second joint body, and a third joint body are combined with each other and a '+'-shaped building plate can be built in various shapes such that a model desired by a user can be finished, the user can build a block by freely changing the shape of a building body and user's initiativeness can be developed. Furthermore, the building body and parts connecting the building body are firmly combined with each other and a rotating portion is rotated while maintaining a considerable suppression force. Thus, the shape of a finished model is not deformed even if a long time elapses after being built and completed, and the finished model can be freely rotated while parts do not escape and shape is not changed even when being used after being built.

Claims

What is claimed is:

1. A building block comprising: a building plate 101 which has a '+'-shaped cross-section by four wing pieces in which a polygonal hole 101 a is perforated in each of the wing pieces and at least one cut first slit 103a is formed from an outer side of the wing pieces toward its center; and a connecting body 104 which is comprised of a pair of connecting bodies and in which a first combining pin 104a and a first combining hole 104b are formed and by which the building plate 101 and the building plate 101 are continuously combined with each other through the polygonal hole 101 a of the building plate 101 in a lengthwise direction.

2. A building block comprising: a first joint body 105 in which a cut second slit 105a is formed in the center of the first joint body 105, a second combining pin or a second combining hole 105b is provided at both sides of the second slit 105a and a first rotating hole 106 is formed below the second combining pin or the second combining hole 105b as one body; and a connecting piece 107 in which a third slit 107b is formed in the middle of an upper portion of the connecting piece 107 in a vertical direction and a third combining pin 107a or a third combining hole to be combined with the second combining pin or the second combining hole 105b of the first joint body 105 is formed in both sides of the third slit 107b.

3. The building block of claim 2, wherein a plurality of fitting holes 117 are formed below the second slit 105a of the first joint body 105, and a fitting portion 118 corresponding to the fitting hole 117 is protruded from a lower portion of the connecting piece 107, and a first guide portion 119 formed of recesses is extended to the first rotating hole 106, and a second guide portion 120 is formed at the bottom surface of the connecting piece 107 to be combined with the first guide portion 119 and to be guided thereto.

4. The building block of claim 2, wherein a plurality of fixing jaws 115 are formed on an inner circumference of the first rotating hole 106.

5. A building block comprising a second joint body 111 in which a first rotating portion 108 is protruded from one side of the second joint body 111 and one of a second rotating hole 109 perforated by a diameter corresponding to the first rotating portion 108 in a direction opposite to the first rotating portion 108 or a second rotating portion that is the same as the first rotating portion 108 is formed.

6. The building block of claim 5, wherein a stopper 116 is protruded from an outer circumference of the first rotating portion 108 or the second rotating portion.

7. The building block of claim 5, wherein a cutout groove 208 is provided at one end of the first rotating portion 108 or the second rotating portion.

8. A building block comprising a third joint body 114 which is comprised of a pair of third joint bodies and in which a protruded rotating shaft 112 and a fixing hole 112a are formed at one side of the pair of third joint bodies, a fixing shaft 113 and a fixing groove 113a are formed between the rotating shaft 112 and the fixing hole 112a, a fixing hole

112a and a rotating shaft 112 corresponding to the rotating shaft 112 and the fixing hole 112a formed at one side of the pair of third joint bodies are formed at the other side of the pair of third joint bodies and a fixing groove 113a and a fixing shaft 113 corresponding to the fixing shaft 113 and the fixing groove 113a formed at one side of the pair of third joint bodies are formed, wherein the building block combines parts so that the third joint body 114 can be rotated around the rotating shaft 112.

9. The building block of claim 8, wherein a stopper 214 is protruded from an outer circumference of the rotating shaft 112.

10. The building block of claim 8, wherein a saw-tooth portion 212 is formed on a lower outer surface of the rotating shaft 112.

11. A building block comprising: a building plate 101 which has a '+'-shaped cross-section by four wing pieces in which a polygonal hole 101a is perforated in each of the wing pieces and at least one cut first slit 103a is formed from an outer side of the wing pieces toward its center; a connecting body 104 which is comprised of a pair of connecting bodies and in which a first combining pin 104a and a first combining hole 104b are formed and by which the building plate 101 and the building plate 101 are continuously combined with each other through the polygonal hole 101a of the building plate 101 in a lengthwise direction; a first joint body 105 in which a cut second slit 105a is formed in the center of the first joint body 105, one wing of the building body 101 is combined with the second slit 105a, a second combining pin or a second combining hole 105b is provided at both sides of the second slit 105a and a first rotating hole 106 is formed below the second combining pin or the second combining hole 105b as one body; and a connecting piece 107 in which a third slit 107b is formed in the middle of an upper portion of the connecting piece 107 in a vertical direction and a third combining pin 107a or a third combining hole to be combined with the second combining pin or the second combining hole

105b of the first joint body 105 is formed in both sides of the third slit 107b.

12. The building block of claim 11 , further comprising a second joint body 111 in which a first rotating portion 108 is protruded from one side of the second joint body 111 and one of a second rotating hole 109 perforated by a diameter corresponding to the first rotating portion 108 in a direction opposite to the first rotating portion 108 or a second rotating portion that is the same as the first rotating portion 108 is formed.

13. The building block of claim 11 , further comprising a third joint body 114 which is comprised of a pair of third joint bodies and in which a protruded rotating shaft 112 and a fixing hole 112a are formed at one side of the pair of third joint bodies, a fixing shaft 113 and a fixing groove 113a are formed between the rotating shaft 112 and the fixing hole 112a, a fixing hole 112a and a rotating shaft 112 corresponding to the rotating shaft 112 and the fixing hole 112a formed at one side of the pair of third joint bodies are formed at the other side of the pair of third joint bodies and a fixing groove 113a and a fixing shaft 113 corresponding to the fixing shaft 113 and the fixing groove 113a formed at one side of the pair of third joint bodies are formed, wherein the first rotating hole 106 or the second rotating hole 109 is combined to be rotated around the rotating shaft 112.