Patent ID: 6186856
Filing Date: 2001-02-13
Classification: A63H

Abstract:
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 1/3 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 1/3 of that of the equilateral triangle, (c) the thickness of the three small equilateral triangular zones (1, 2 and 3) is 1/2 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.