Rotary foot device and shoe arrangement

Abstract

A rotary foot device and shoe arrangement includes a mounting structure formed integral with the sole of a shoe, and a rotary foot device fastened to the mounting structure for enabling the shoe to be rotated with the mounting structure relative to a part of the rotary foot device on the floor by the user.

What the invention claimed is:  
     
         1 . A rotary foot device and shoe arrangement comprising: 
 a mounting structure provided at the bottom side of a shoe, said mounting structure comprises a circular recess and a fixed nut fixedly provided in said circular recess; and    a rotary foot device fastened to said mounting structure for enabling the shoe to be rotated with said mounting structure relative to a part of said rotary foot device on the floor by the user, said rotary foot device comprising an axle bearing, a bushing mounted in said axle bearing, a screw bolt threaded into said fixed nut to secure said bushing and said axle bearing to said fixed nut, a rubber cup fixedly covered on the periphery of said axle bearing and adapted to support said axle bearing on the floor for enabling the user to rotate the shoe back and force on said rubber cup, said rubber cup having a center through hole for the passing of said screw bolt, and a bushing mounted between said screw bolt and said axle bearing.    
     
     
         2 . The rotary foot device and shoe arrangement as claimed in  claim 1  wherein said rotary foot device further comprises a packing plate tightly sandwiched in between said axle bearing and said rubber cup to prevent direct contact between said bushing and said axle bearing.  
     
     
         3 . The rotary foot device and shoe arrangement as claimed in  claim 1  wherein said rotary foot device further comprises a plug cap press-fitted into the center through hole of said rubber cup.  
     
     
         4 . The rotary foot device and shoe arrangement as claimed in  claim 1  wherein said mounting structure is formed integral with the sole of the shoe.  
     
     
         5 . The rotary foot device and shoe arrangement as claimed in  claim 1  wherein said mounting structure is formed integral with a shoe sheath worn on the shoe.