Pyramid crib blocks

Abstract

This invention is concerned with an assembly unit of support crib which can be easily assembled and disassembled to form a crib of the desired supporting height. The pyramid crib block is formed from identical shaft-like elements, chocks, which connect to one another through horizontal interlocking means, preferably angled dovetail joints. Chocks may be interconnected to form a polygonal pyramid crib block, preferably either a triangular or a rectangular in shape. Each pyramid crib block is stackable. It is superimposed one another as layers and interlocked vertically between layers to from a stable and durable crib that is easy to construct and inexpensive to build.

We claim:  
     
         1 . A crib block assembly comprised of a plurality of identical block members, each of said block member comprising: 
 top, bottom, and opposing side portions;    a connector assembly formed on said top and bottom portions which allow connection of blocks in a vertical direction; and    first and second joint members on each end of each block member, said first and second joint members of adjacent blocks mating together, wherein at least three of said block members are connectable by said first and second joint members to configure a polygonal shape and said polygonal shape thus formed is stackable using said connector assembly to form said crib block assembly.    
     
     
         2 . The crib block assembly of  claim 1 , wherein said connector assembly is comprised of dowels and bores, wherein said dowels extend from one block to another block in said vertical direction into said bores in said another block.  
     
     
         3 . The crib block assembly of  claim 1 , wherein said connector assembly is comprised of splines and matching cuts, wherein said splines extend from one block to another block in said vertical direction into said matching cuts in said another block.  
     
     
         4 . The crib block assembly of  claim 1 , wherein said first joint member has a plurality of vertical tenons extending from said top to said bottom portion of said block member, and said second joint member has a plurality of vertical mortises extending from said top to said bottom portion of said block member, said plurality of vertical tenons mate said plurality of vertical mortises, whereby a multiple of horizontal interlocking joint are formed.  
     
     
         5 . The crib block assembly of  claim 1 , wherein first joint member has one vertical tenons, and said second joint member has one mortise, said vertical tenon mates said vertical mortises, whereby a horizontal interlocking joint are formed.  
     
     
         6 . The crib block assembly of  claim 5 , said horizontal interlocking joint is in a dovetail configuration.  
     
     
         7 . The crib block assembly of  claim 5 , said horizontal interlocking joint is in a polygonal configuration.  
     
     
         8 . The crib block assembly of  claim 1 , wherein said crib block assembly has three block members and has triangular shape.  
     
     
         9 . The crib block assembly of  claim 1 , wherein said crib block assembly has four block members and has square shape.  
     
     
         10 . The crib block assembly of  claim 1 , wherein said top and bottom portions have essentially flat surface so that said pyramid crib block can be stacked easily.