Stackable building block array

Abstract

A stackable building block composed of a plurality or array of spaced apart hollow cone elements. All of the cones are identically configured and have an equal sided polygon cross-section. The cones are attached at their bases to form the array and may include shaped internal ribs to define a stacking height limitation.

What is claimed is: 
     
         1 . A stackable building block comprising in combination:
 A. At least a pair of identical hollow cones having a base and a top each comprising:
 1. at least three identical upright sides tapering upward from said base to said top, said sides joined at their edges thereby forming in cross-section an equal sided polygon; 
 2. blocking means disposed within the interior of each of said cones to limit the upper position of the top of an additional of said cones upon the insertion into the base of an additional of said cones; and 
 3. means for attaching each of said cones one to the other at their bases, said bases each positioned in the same plane. 
   
     
     
         2 . The stackable building block of  claim 1  wherein said cone further has reinforcement ribs disposed at the intersections of said sides. 
     
     
         3 . The stackable building block of  claim 1  wherein said blocking means comprises a rib disposed on the interior of said cone at the intersection of at least two of said sides, said rib having a step extension extending to the interior of said cone. 
     
     
         4 . The stackable building block of  claim 1  further including a third of said cones attached to each cone of said pair of cones, each of said cones having a central longitudinal axis, and wherein each of said axis is separated from the other by an equal distance. 
     
     
         5 . The stackable building block of  claim 1  wherein said stacking block comprises three of said pairs of said cones assembled into an array having a parameter constituting an equal sided hexagon and an additional of said cones disposed in the center of said hexagon , each of said cones having a central longitudinal axis, and wherein each of said axis is separated from the other of each adjacent of said cones by an equal distance.