Balancing exerciser

Abstract

A balancing exerciser includes an immovable base having a socket opening for pivotally engaging with a universal joint device which has a shank, a plate is located above the base for supporting a user and includes a hole for engaging with the shank, and a knob engaged with the shank of the universal joint device and engaged with the plate for securing the plate to the shank of the universal joint device and for attempting to maintain the plate in a horizontal position or status and for allowing the user to conduct the balancing exercises or operations. The shank of the universal joint device is selected from a threaded shank for engaging with the threaded hole of the plate and for adjusting the plate toward and away from the base.

I claim: 
     
         1 . A balancing exerciser comprising:
 an immovable base including a socket opening formed therein, a universal joint device pivotally received and engaged in said socket opening of said base and pivotable and tiltable relative to said base, said universal joint device including a shank extended outwardly therefrom,   a plate located above said base for supporting a user thereon, said plate including a hole formed therein for receiving and engaging with said shank of said universal joint device, and   a knob attached to said shank of said universal joint device for rotating said shank and said universal joint device relative to said plate, and for adjusting said plate up and down relative to said base with said shank of said universal joint device.   
     
     
         2 . The balancing exerciser as claimed in  claim 1 , wherein said shank of said universal joint device is a threaded shank, and said hole of said plate is a threaded hole for threading and engaging with said threaded shank of said universal joint device and for adjusting said plate toward and away from said base with said threaded shank of said universal joint device. 
     
     
         3 . The balancing exerciser as claimed in  claim 1 , wherein said universal joint device includes a locking pin engaged between said knob and said shank. 
     
     
         4 . The balancing exerciser as claimed in  claim 1 , wherein said socket opening of said base is a semi-spherical socket opening, and said universal joint device is spherical for engaging with said semi-spherical socket opening of said base.