Exercise device

Abstract

An exercise device includes a triangular base with at least three wheels mounted to a bottom thereof to allow for movement in all directions on various surfaces. The triangular base is configured to receive at least one insert suitable for use in performing a variety of exercises.

What is claimed is: 
     
         1 . An exercise device comprising:
 a body;   at least three wheels mounted on a bottom of the body,
 wherein the at least three wheels are configured to allow the body to roll in any direction; 
   a central cavity formed between the at least three wheels;   a removable insert mounted in the central cavity,
 wherein the removable insert includes a flat surface configured for contact with a hand or foot of a user; and 
   a friction pad movably mounted on a bottom surface of the central cavity from a retracted position where the friction pad is held above ground to an extended position where the friction pad is in contact with he ground and prevents the body from rolling.   
     
     
         2 . The exercise device of  claim 1  wherein the body is made of steel. 
     
     
         3 . The exercise device of  claim 1 , wherein the body includes a silicone outer surface mounted on the body. 
     
     
         4 . The exercise device of  claim 3 , wherein the silicone outer surface is molded separately and connected to the body. 
     
     
         5 . The exercise device of  claim 1 , wherein each wheel of the at least three wheels is mounted in a caster configured to allow each wheel of the at least three wheels to rotate 360 degrees relative to a vertical axis. 
     
     
         6 . The exercise device of  claim 5  wherein each caster is removable from the body such that each wheel of the at least the wheels is removable from the body to prevent movement of the body. 
     
     
         7 . The exercise device of  claim 5 , wherein each caster comprises:
 a pair of spaced horns configured for positioning on opposite sides of the wheel;   a lower retainer connected to the pair of spaced horns;   a mounting plate fixedly connected to the body;   a lower bearing provided between the lower retainer and an upper retainer; and   an upper bearing provided between the upper retainer and the mounting plate such that the wheel is rotatable about the vertical axis.   
     
     
         8 . The exercise device of  claim 1 , wherein the body includes a plurality of openings formed therein and configured as attachment points. 
     
     
         9 . The exercise device of  claim 8 , wherein each opening includes a loop connected to the body. 
     
     
         10 . The exercise device of  claim 1 , wherein the removable insert includes a semispherical portion extending from a first surface of the removable insert, opposite the flat surface. 
     
     
         11 . The exercise device of  claim 10 , wherein the semispherical portion is received in the central cavity of the body when the removable insert is positioned over the central cavity in a first position. 
     
     
         12 . The exercise device of  claim 10 , wherein the hemispherical portion extends upward when the removable insert is positioned over the central cavity in a second position. 
     
     
         13 . The exercise device of  claim 10 , wherein the semispherical portion is made of soft silicone. 
     
     
         14 . The exercise device of  claim 10 , the semispherical portion includes a translucent outer skin, and an interior pattern configured to provide support. 
     
     
         15 . The exercise device of  claim 3 , wherein the removable insert includes a rigid ring round a periphery thereof to provide additional strength. 
     
     
         16 . The exercise device of  claim 15 , wherein the rigid ring includes at least one protrusion configured to be received in at least one slot formed in the silicone outer surface. 
     
     
         17 . The exercise device of  claim 1 , further comprising a removable handle configured for mounting on the body in place of the removable insert. 
     
     
         18 . The exercise device of  claim 1 , wherein the removable handle includes:
 a base plate covering the central cavity; and   an upward extending handle element extending from the base plate and positioned over the central cavity.   
     
     
         19 . The exercise device of  claim 1 , wherein a bottom surface of the base plate includes high friction material to prevent sliding of the removable handle when not connected to the body. 
     
     
         20 . An exercise device comprising:
 a body;   at least three wheels mounted a bottom of the body,
 wherein the at least three wheels are configured to allow the body to roll in any direction; 
 a central cavity formed between the at least three wheels; 
 a removable handle mounted over the central cavity; and 
 a friction pad movably mounted on a bottom surface of the central cavity from a retracted position where the friction pad is held above ground to an extended position where the friction pad is in contact with the ground and prevents the body from rolling. 
   
     
     
         21 . An exercise system comprising:
 the exercise device of  claim 1 ;   a second exercise device comprising:
 a second body; 
 at least three second wheels mounted on a bottom of the body,
 wherein the at least three second wheels are configured to allow the body to roll in any direction; 
 
 a second central cavity formed between the at least three second wheels; 
 a second removable insert mounted in the second central cavity,
 wherein the second removable insert includes a second flat surface configured for contact with a second hand or second foot of a user; and 
 
 a second friction pad movably mounted on a bottom surface of the second central cavity from a retracted position where the second friction pad is held above ground to an extended position where the second friction pad is in contact with the ground and prevents the body from rolling; and 
   a connecting bar connecting the exercise device to the second exercise device.