US 9,808,734 B2
Dovetailed building block
Yu-Chin Kuo, New Taipei (TW)
Assigned to Mei-Tsu Lin, (TW)
Filed by Mei-Tsu Lin, New Taipei (TW)
Filed on Oct. 25, 2016, as Appl. No. 15/334,211.
Application 15/334,211 is a continuation of application No. 14/752,995, filed on Jun. 28, 2015, abandoned.
Prior Publication US 2017/0036134 A1, Feb. 9, 2017
Int. Cl. A63H 33/08 (2006.01); E04C 1/00 (2006.01)
CPC A63H 33/082 (2013.01) [A63H 33/08 (2013.01); E04C 1/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. 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 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 each said dovetailed projection has an outer end-surface, each said dovetailed recess has an inner surface, a height of said outer end-surface is equal to a width of the outer end-surface, and the height of said outer end-surface of the dovetailed projection is also equal to a width of said inner surface of the dovetailed recess, such that when trying to assemble two identical said building blocks, there will be at least two different ways to assemble these two building blocks, wherein:
a first way to assemble said building blocks is to have one of the dovetailed projections of one of the building blocks to be received in and retained by one of the dovetailed recesses of the other one of the building blocks in such a manner that, the top surfaces of the block bodies of these two building blocks are lying on the same plane;
a second way to assemble said building blocks is to have said block body of one said building block to be turned in a 90-degree manner so as to have its dovetailed projection to engage the corresponding dovetailed recess of the block body of the other said building block in a 90-degree cross manner, that is, the top surfaces of the block bodies of these two building blocks will present a perpendicular plane pair;
the block body further includes 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: therefore, when trying to assemble two identical said building blocks, there will be a third way to assemble these two building blocks, wherein, the post of the block body of one said building block is engaged with the cavity of the block body of the other said building block, such that the block bodies of these two building blocks are stacked together in a longitudinal direction.