Exercising ball

Abstract

An exercising ball includes an inflatable ball body made of an elastic material and defining a chamber, and a moving element disposed movably in the chamber. The inflatable ball body has a passage hole that permits the moving element to enter the chamber, and an inflation valve fitted sealingly and removably in the passage hole.

1 . An exercising ball comprising:
 an inflatable ball body made of an elastic material and defining a chamber; and   a moving element disposed movably in said chamber.   
   
   
       2 . The exercising ball of  claim 1 , wherein said inflatable ball body has a passage hole that permits said moving element to enter said chamber, and an inflation valve fitted sealingly and removably in said passage hole. 
   
   
       3 . The exercising ball of  claim 2 , wherein said inflatable ball body further has a rounded wall, and a tubular protrusion that extends into said chamber from said rounded wall and that defines said passage hole. 
   
   
       4 . The exercising ball of  claim 2 , further comprising a valve plug, said inflation valve having an inflation hole, said valve plug being inserted into said inflation hole. 
   
   
       5 . The exercising ball of  claim 1 , wherein said moving element has a circular cross section. 
   
   
       6 . The exercising ball of  claim 1 , wherein said moving element is multi-faced, and includes a plurality of corners, and a plurality of curved sides interconnecting said corners. 
   
   
       7 . The exercising ball of  claim 4 , wherein said moving element is configured as a spherical ball. 
   
   
       8 . The exercising ball of  claim 1 , wherein said moving element is made of a soft material. 
   
   
       9 . The exercising ball of  claim 1 , wherein said moving element is made of a hard material. 
   
   
       10 . The exercising ball of  claim 1 , wherein said moving element has a pouch, and a filler filled in said pouch and selected from the group consisting of sand, water, and pellets.