Magnetically-joinable play tiles

Abstract

A magnetically joinable play tile comprising a tile body having an edge; and a rotatable magnet carried by tile body adjacent to the edge.

What is claimed is: 
     
         1 . A magnetically joinable play tile, comprising:
 a tile body having an edge;   a rotatable magnet carried by tile body adjacent to the edge.   
     
     
         2 . The magnetically joinable play tile of  claim 1 , wherein the tile body is a uni-body and the rotatable magnet is carried within the uni-body for rotation therein. 
     
     
         3 . The magnetically joinable play tile of  claim 1 , wherein the tile body includes a receiving pocket and further including a magnetic cartridge assembly receivable in the receiving pocket, and the magnetic cartridge assembly includes the rotatable magnet therein. 
     
     
         4 . The magnetically joinable play tile of  claim 3 , wherein the magnetic cartridge assembly includes a mechanical tile alignment support that enables stable edge-to-edge tile assembly. 
     
     
         5 . The magnetically-joinable play tile of  claim 1 , wherein the tile body includes a tile-body cut-out and further including a magnetic cartridge assembly that attaches onto the tile body whereby the magnetic cartridge assembly includes the rotatable magnet therein and the rotatable magnet is disposed in the tile-body cut-out. 
     
     
         6 . The magnetically joinable play tile of  claim 5 , wherein the magnetic cartridge assembly includes a mechanical tile alignment support that enables stable edge-to-edge tile assembly. 
     
     
         7 . The magnetically-joinable play tile of  claim 1 , further including a mechanical tile alignment support that enables stable edge-to-edge tile assembly. 
     
     
         8 . The magnetically joinable play tile of  claim 7 , wherein the rotatable magnet is disposed adjacent to the mechanical tile alignment support. 
     
     
         9 . The magnetically joinable play tile of  claim 7 , wherein the rotatable magnet is disposed not adjacent to the mechanical tile alignment support. 
     
     
         10 . The magnetically joinable play tile of  claim 1 , wherein the rotatable magnet is a cylindrical magnets with four poles, two North poles and two South poles. 
     
     
         11 . The magnetically-joinable play tile of  claim 1 , wherein the rotatable magnet includes two two-pole magnets joined end-to-end, forming a four-pole magnet having an abrupt field reversal along its length. 
     
     
         12 . The magnetically-joinable play tile of  claim 1 , wherein the rotatable magnet includes a shape of one of a sphere, a zone of sphere, a segment of sphere, a hemisphere, a spherical sector, an ellipsoid, an oblate spheroid, a prolate spheroid, a conoid, a non-right cylinder, a truncated cylinder, a cone, a truncated cone, a truncated right circular cone, and a frustum of right circular cone. 
     
     
         13 . The magnetically joinable play tile of  claim 1 , wherein the tiles includes magnet includes a shape of one of a sphere, a zone of sphere, a segment of sphere, a hemisphere, a spherical sector, an ellipsoid, an oblate spheroid, a prolate spheroid, a conoid, a non-right cylinder, a truncated cylinder, a cone, a truncated cone, a truncated right circular cone, and a frustum of right circular cone. 
     
     
         14 . The magnetically joinable play tile of  claim 1 , wherein the tile body is made of one of corrugated cardboard and paper-faced foam board, and further including a magnetic cartridge assembly that attaches onto the tile body whereby the magnetic cartridge assembly includes the rotatable magnet therein. 
     
     
         15 . The magnetically-joinable play tile of  claim 7 , wherein the mechanical alignment supports include one or more of splines, knurled surfaces, rough surfaces, fractal surfaces, adhesive-coated surfaces, hook-loop pairs, tab/slot pairs, rounded/convex ends, rounded/concave grooves, rounded/concave channels.