Dance balance/turning board

Abstract

A dance balance/turning board is provided, including a base having an upper surface and an opposite lower surface; a turntable bearing having a lower flange mounted to the upper surface, and an upper flange; a rotating platform secured to the upper flange for axial rotation relative to the base; and a hemispheroidal balance surface mountable to the lower surface so that upon the mounting, the rotating platform is disabled from rotating.

1 . A dance balance/turning board, comprising:
 a base having an upper surface and an opposite lower surface;   a turntable bearing having a lower flange mounted to said upper surface, and an upper flange;   a rotating platform secured to said upper flange for axial rotation relative to said base; and   a hemispheroidal balance surface mountable to said lower surface and including a locking mechanism engageable with said rotating platform so that upon said mounting, said rotating platform is disabled from rotating.   
     
     
         2 . The dance balance/turning board of  claim 1 , wherein said balance surface includes a bowl portion with a peripheral edge, and at least one pin projecting from said edge away from said bowl portion. 
     
     
         3 . The dance balance/turning board of  claim 2 , further including a plurality of said pins integrally formed with said bowl portion. 
     
     
         4 . The dance balance/turning board of  claim 2 , wherein said at least one pin tapers from said balance surface towards a tip of said pin. 
     
     
         5 . The dance balance/turning board of  claim 2 , wherein said locking mechanism includes at least one pin bore in said base and in said rotating platform, wherein said at least one pin engages a corresponding one of said pin bores to secure said balance surface to said base, and for preventing said rotating platform from rotating while said balance surface is engaged on said base. 
     
     
         6 . The dance balance/turning board of  claim 3 , wherein tips of said pins are visible from said rotating platform upon engagement of said balance surface with said base. 
     
     
         7 . The dance balance/turning board of  claim 1 , further including a resilient surface on said rotating platform for enhanced traction. 
     
     
         8 . The dance balance/turning board of  claim 1 , wherein said base has at least one handle. 
     
     
         9 . The dance balance/turning board of  claim 1 , further including at least one supplemental pin configured for disabling rotation of said rotating platform when said balance surface is detached from said base. 
     
     
         10 . The dance balance/turning board of  claim 1 , wherein a radius of curvature of a bottom portion of an outer surface of said balance surface is distinct from a radius of curvature of said outer surface. 
     
     
         11 . The dance balance/turning board of  claim 10 , wherein said radius of curvature of said bottom portion is greater than a radius of curvature of said outer surface. 
     
     
         12 . The dance balance/turning board of  claim 1 , further including at least one resilient foot secured to said lower surface of said base. 
     
     
         13 . The dance balance/turning board of  claim 1 , further including a wireless speaker and associated circuitry. 
     
     
         14 . The dance balance/turning board of  claim 1 , wherein said rotating platform is rotatably mounted in a cavity in said base, and has an upper surface, which is generally flush with an upper surface of said base. 
     
     
         15 . The dance balance/turning board of  claim 1 , further including a level mounted to said base.