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US 6,186,856 B1Granted
Toy of equilateral triangular building blocks
OwnerChing Yean Cheninventor
Life of this patent
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OwnerChing Yean Cheninventor
Estimating the term…
The present invention concerns a building block toy, characterized in that a single kind of building block is used and in that the building block is of a unique shape. Specifically, the center of a flat equilateral triangular piece and the center of a flat hexagonal piece with the same thickness can be overlapped, and the three conjugated sides of the hexagonal piece can be connected to the three sides of the equilateral triangular piece upon stacking these two pieces in a parallel manner. The length of each side of the equilateral hexagonal piece is ⅓ of that of the side of the equilateral triangular piece. Thus, the parts where the equilateral triangular piece and the equilateral hexagonal piece overlap form three small equilateral triangular pieces (1, 2 and 3) of equal size. More importantly, one of the three small equilateral triangular pieces (1) is removed and transferred to the side of the hexagonal piece for connection in such a manner that the direct-view diagram of the front side or back side of the equilateral triangular block of the present invention shows an equilateral triangle. In addition, the front side of the equilateral triangular block of the present invention is equipped with projectiles (4, 5 and 6) (that is, on the three small equilateral triangles and the equilateral hexagon), and the back side is equipped with cups (7, 8 and 9) at positions opposite the projectiles, so that the equilateral triangular building blocks can be stacked together by means of the projectiles and cups.
A flat building block toy, wherein (a) both the front and rear have an equilateral triangular shape, (b) the central part of the equilateral triangular is divided at intervals of ⅓ of the length of each of the sides of the equilateral triangle to form an equilateral hexagonal zone (11) and three small equilateral triangular zones (1, 2 and 3) at the three corners of the equilateral triangle, with the length of each hexagonal side being ⅓ of that of the equilateral triangle, (c) the thickness of the three small equilateral triangular zones (1, 2 and 3) is ½ of the thickness of the central hexagonal zone (11), (d) one small equilateral triangular zone (1) among the three small equilateral triangular zones (2 and 3), (e) the equilateral triangular building block is divided into nine equal side small equilaterial triangles, which include three small equilateral triangular zones (1, 2 and 3) at the three corners of the equilateral triangular building block and six equal-size small equilateral triangular zones (12) obtained by dividing the central equilateral hexagonal zone (11), and (f) each front side of these nine small equilateral triangular zones possesses a projection of the same size (4, 5 and 6) the back side of these nine small equilateral triangular zones possesses a cup of the same size complimentary to the projection, so that these nine projections and the nine cups can be stacked together during a stacking game.
Dependencies are inferred from the claim text.