Dovetailed building block

Abstract

A dovetailed building block includes a block body having a regular polygonal shape having side surfaces in which dovetailed recesses and dovetailed projections are alternately formed. To join two building blocks in a transverse direction, one dovetailed projection of one building block is received in and retained by one dovetailed recess of the other building block. The building block has a simple structure and allows for assembly in a curved form to present unique three-dimensional configurations with versatile variability. Each or one of the dovetailed projections of the building block has upper and lower ends that respectively form upper and lower inclination facets so that when two building blocks are joined in a longitudinal direction, the upper and lower inclination facets of the two blocks are positioned against each other. A positioning point is formed in the dovetailed recess by the upper inclination facet to ensure firm and stable connection.

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         10 . A dovetailed building block, comprising:
 a block body that has a regular hexagonal configuration having a top surface, a bottom surface opposite to the top surface, and exactly six side surfaces connecting the top surface and the bottom surface; each of said six side surfaces having a flat plane; said six side surfaces being sequentially composed of a first side surface, a second side surface, a third side surface, a fourth side surface, a fifth side surface and a sixth side surface; each of the first side surface, the third side surface and the fifth side surface being respectively provided with exactly one dovetailed recess located right in a middle thereof without any dovetailed projection being provided thereon; each of the second side surface, the fourth side surface and the sixth side surface being respectively provided with exactly one said dovetailed projection located right in a middle thereof without any said dovetailed recess being provided thereon; the dovetailed recesses and the dovetailed projections each having an isosceles trapezoidal configuration corresponding to each other;   wherein one of the dovetailed projections of one of the building blocks is receivable in and retained by one of the dovetailed recesses of the other one of the building blocks to achieve a three-dimensional configuration;   wherein the block body further comprises a post formed on the top surface thereof and a cavity formed in the bottom surface thereof, the post having a surface area receivable in and engageable with a surface area of the cavity so as to achieve firm connection of at least two building blocks in a transverse direction; wherein the post and the cavity are regular hexagons.   
     
     
         11 . The dovetailed building block according to  claim 10 , wherein
 the dovetailed projection comprises an upper inclination facet, a lower inclination facet, and a positioning point, the upper inclination facet being formed on an upper end of the dovetailed projection, the lower inclination facet being formed on a lower end of the dovetailed projection, the upper inclination facet and the lower inclination facet being substantially parallel, whereby when a plurality of the building blocks is joined in a longitudinal direction, the upper inclination facet and the lower inclination facet of the building blocks are positioned against each other, the dovetailed recess defining, in combination with the upper inclination facet, at least one positioning point that achieves firm connection of the building block in both transverse and longitudinal directions.   
     
     
         12 . The dovetailed building block according to  claim 10 , wherein
 when the building blocks are stacked in a longitudinal direction, joining of the building blocks is achievable through adjustment of angular positions of the post and the cavity by a multiple of 60 degrees.   
     
     
         13 . An assembly of dovetailed building blocks, comprising:
 a first dovetailed building block and a second dovetailed building block;   each of the dovetailed building blocks comprising: a block body that has a regular hexagonal configuration having a top surface, a bottom surface opposite to the top surface, and exactly six side surfaces connecting the top surface and the bottom surface; each of said six side surfaces having a flat plane; said six side surfaces being sequentially composed of a first side surface, a second side surface, a third side surface, a fourth side surface, a fifth side surface and a sixth side surface; each of the first side surface, the third side surface and the fifth side surface being respectively provided with exactly one dovetailed recess located right in a middle thereof without any dovetailed projection being provided thereon; each of the second side surface, the fourth side surface and the sixth side surface being respectively provided with exactly one said dovetailed projection located right in a middle thereof without any said dovetailed recess being provided thereon; the dovetailed recesses and the dovetailed projections each having an isosceles trapezoidal configuration corresponding to each other;   wherein one of the dovetailed projections of one of the building blocks is receivable in and retained by one of the dovetailed recesses of the other one of the building blocks to achieve a three-dimensional configuration;   wherein the block body further comprises a post formed on the top surface thereof and a cavity formed in the bottom surface thereof, the post having a surface area receivable in and engageable with a surface area of the cavity so as to achieve firm connection of the building blocks in a transverse direction; wherein the post and the cavity are regular hexagons;   wherein the top surface of the first dovetailed building block is exactly the same size with the top surface of the second dovetailed building block, however, a height defined between the top surface and the bottom surface of the first dovetailed building block is different from the other height defined between the top surface and the bottom surface of the second dovetailed building block.   
     
     
         14 . The assembly of dovetailed building blocks according to  claim 13 , wherein
 the dovetailed projection comprises an upper inclination facet, a lower inclination facet, and a positioning point, the upper inclination facet being formed on an upper end of the dovetailed projection, the lower inclination facet being formed on a lower end of the dovetailed projection, the upper inclination facet and the lower inclination facet being substantially parallel, whereby when a plurality of the building blocks is joined in a longitudinal direction, the upper inclination facet and the lower inclination facet of the building blocks are positioned against each other, the dovetailed recess defining, in combination with the upper inclination facet, at least one positioning point that achieves firm connection of the building block in both transverse and longitudinal directions.   
     
     
         15 . The assembly of dovetailed building blocks according to  claim 13 , wherein
 when the building blocks are stacked in a longitudinal direction, joining of the building blocks is achievable through adjustment of angular positions of the post and the cavity by a multiple of 60 degrees.