Abstract:
A new weighted exercise ball is disclosed in the present invention. The ball has handles on each side of the ball which rotate 360 degrees clockwise or counter clockwise. The handles alleviate stress on the wrists and provide a firm grip. The ball has inner compartments that slide outward and allows for the entry of weights of various sizes.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    Medicine ball training is one of the oldest forms of strength training. One of the earliest forms of the medicine ball is found in Persia nearly 3000 years ago and Ancient Greece. These early forms were made from animal skins stuffed with sand. These early medicine balls were used for strength and conditioning training, and injury prevention and rehabilitation. Medicine balls are stilled for these purposes today, but the structure of the medicine ball has evolved. 
         [0002]    Medicine balls are constructed of nylon cloth which is covered with leather or vinyl. They are filled with an impact absorbing material which gives them their weight. Some medicine balls are made of rubbery material and consist of having an inner rubber bladder covered with an outer rubber shell. These types of medicine balls are used in exercises where bouncing is required. 
         [0003]    Also, medicine balls can have variations on the outside structure of the ball. Typically, a medicine ball is a spherical form which is the ball and nothing more. However, various manufactures have been incorporating the use of handles on or into the ball. Some balls have one handle while others have two with one on each side. Handles allow the user to grasp and swing the ball which alleviates strain on the wrists. Some balls incorporate a rope which passed through the center of the ball and is knotted on the end. This allows the user to swing the ball with little strain. Other balls incorporate a bar that also passes through the center of the ball, so the ball is placed in the center of the bar. 
         [0004]    Medicine balls provide various ways to facilitate functional strength training. Instead of focusing on only one muscle group, exercises utilizing the medicine ball make the trainee use multiple muscle groups at once. One main exercise use of medicine balls is to improve core strength. The core of the human body relates to the abdominals, lower back, hips and spine. The medicine ball can also be used to improve stability, upper and lower body strength. 
         [0005]    Medicine balls can also be used for rehabilitation after an injury. Rehabilitative exercises with a medicine ball will improve joint integrity and strengthen the muscles with light resistance. 
       SUMMARY OF THE INVENTION 
       [0006]    The present invention provides a new structure to the medicine ball. In the preferred embodiment of the present invention, the weighted ball can have a predetermined diameter of at least 33 inches. However, the diameter of the ball can vary from small, medium or large to accommodate user. The All In One Fitness Weight Ball can be constructed of soft plastic, rubbery and metal materials. It has handles on each side of the ball which rotate 360 degrees clockwise or counter clockwise. The handles alleviate stress on the wrists and provide a firm grip. An innovative feature of the present invention is the removable weights. The weights are fitted over a metal shaft that is positioned within the interior of the ball structure. The metal shaft is attached into to one of the handles and is positioned into the interior of the ball which is hollow. One particular handle has a pushbutton on it, so that when the button is depressed the handle and metal shaft become removable to allow for the insertion of weights. The All In One Fitness Weight Ball uses weights that start at two pounds, but can vary in weight. 
     
    
     
       DESCRIPTION OF DRAWINGS 
         [0007]      FIG. 1  is an exploded perspective view of the present invention with shaft removed. 
           [0008]      FIG. 2  is a perspective view of the medicine ball the shaft in place. 
           [0009]      FIG. 3  is an internal view of the present invention 
           [0010]      FIG. 4  is a perspective view of the handle. 
           [0011]      FIG. 5  is a perspective view of the ball bearing. 
           [0012]      FIG. 6  is a side view of the medicine ball which shows the placement of the ball bearing. 
           [0013]      FIG. 7  is a perspective view of an alternative embodiment of the fitness ball with the rod for stabilization. 
       
    
    
     DETAILED DESCRIPTION 
       [0014]    Referring now to the drawings, especially  FIG. 1 , there is illustrated an exploded perspective view of one embodiment the present invention. In the preferred embodiment, the fitness ball ( 20 ) consists of a geometrical structure ( 21 ) that is hollow internally. In the preferred embodiment, the geometrical structure ( 21 ) is spherical. However, the geometrical shape of structure ( 21 ) is not limited. The structure ( 21 ) further comprises opposing covers ( 12 ,  13 ) at each end. In the depicted embodiment, each cover ( 12 ,  13 ) is circular in nature and has a recessed section ( 40 ,  42 ) in the center. Handles ( 10 ,  11 ) are attached to each cover ( 12 ,  13 ). As shown, each handle ( 10 ,  11 ) arcs over the recession section ( 40 ,  42 ) within each cover ( 12 ,  13 ) and attach at the sides of the covers ( 12 ,  13 ). Each end of the handles ( 10 ,  11 ) is fixably attached to each side of the covers ( 12 ,  13 ). 
         [0015]    A unique feature of the present invention is the push button ( 14 ) which allows the user to change the weight of the fitness ball. In operation, a push button ( 14 ) is operationally connected within the geometrical structure ( 21 ) as illustrated in  FIG. 2 . When the button ( 14 ) is depressed, it triggers a spring-loaded button ( 15 ) internally disposed within the structure ( 21 ) that is attached to the shaft ( 30 ). The spring-loaded button ( 15 ) depresses into a hole ( 17 ) in the shaft ( 30 ) which allows it lie flat against the interior wall of the geometrical structure ( 21 ). This process unlocks the shaft ( 30 ) which is slidably engaged within the structure ( 21 ) and allows the user to remove the shaft ( 30 ) as illustrated in  FIG. 3 . When the user slides the shaft into the structure ( 21 ), the spring-loaded button ( 15 ) will go into the hole ( 17 ) and lie flat. Once the shaft ( 30 ) is in place, the spring-loaded button ( 15 ) fits into a hole ( 17 ) in the interior wall. This process allows the shaft ( 30 ) to lock in place. 
         [0016]    Referring to  FIG. 3 , the internal shaft ( 30 ) is illustrated. The shaft ( 30 ) is attached to opposing removable covers ( 12 ,  13 ) and therefore is removable from the structure ( 21 ). In the preferred embodiment, the shaft ( 30 ) is rectangular in structure and contains a plurality of compartments ( 31 ) aligned along the longitudinal axis of the shaft ( 30 ). Each compartment ( 31 ) is a recessed area into the shaft ( 30 ). The compartments ( 31 ) allow the trainee to place weights ( 40 ) of various sizes into the shaft ( 30 ). This allows the trainee to control the weight of the fitness ball ( 20 ). 
         [0017]      FIG. 4  illustrates one embodiment of weights ( 40 ) that accompany the fitness ball ( 20 ). The weights ( 40 ) are rectangular in structure and have a centrally disposed depression within the upper surface area of the weight ( 40 ). The weights ( 40 ) are designed to sit within the compartments ( 31 ) inside the shaft ( 30 ). 
         [0018]    Referring to  FIG. 5  and  FIG. 6 , the ball bearings ( 41 ,  42 ) that allow the fitness ball ( 20 ) to independently rotate is illustrated and are disposed within cover ( 12 ,  13 ). Each cover ( 12 ,  13 ) can independently rotate 360 degrees. Opposing ball bearings ( 41 ,  42 ) are disposed between the handles ( 10 ,  11 ) on the opposing sides of the shaft ( 30 ). In operation, the user grasp the handles ( 10 ,  11 ), and he can rotate the fitness ball ( 20 ) by turning the handles ( 10 ,  11 ). The ball bearings ( 41 ,  42 ) facilitate the rotation of the fitness ball ( 20 ) while decreasing friction. 
         [0019]    Referring to  FIG. 7 , an alternative embodiment of the present invention is illustrated. A rod ( 50 ) is provided to stabilize the fitness ball ( 20 ) specifically when larger weights are used. The rod ( 50 ) is tubular in structure and is permanently attached to opposing covers ( 12 ,  13 ). In the alternative embodiment, the interior shaft ( 30 ) is still included, but has some modifications. In the alternative embodiment, the shaft ( 30 ) is modified to slide over and engage with the rod ( 50 ). The underside of the shaft ( 30 ) has an arc which allows the shaft ( 30 ) to engage with the rod ( 50 ). The underside of each weight ( 52 ) also has an arc, so it can fit into the modified shaft ( 30 ). The weights ( 52 ) have a rectangular depression on the top, and a handle ( 51 ) is attached to the depression. The handle ( 51 ) allows the user to pick the weight ( 52 ) up. Handle  51  can also be used in the weights in  FIG. 1 .