Exerciser for backward rotating exercises

Abstract

An exerciser includes a base including a seat for supporting a user, a back frame rotatably secured on the base with a pivot axle for supporting the back of the user and for allowing the user to force and to rotate the back frame relative to the base about the pivot axle. A foot support is slidable relative to the base and selectively coupled to the back frame for allowing the back frame and the foot support to be moved in concert with each other. The back frame includes one or more brackets selectively secured to the base and the foot support with fasteners.

I claim:  
     
         1 . An exerciser comprising: 
 a base including a seat for supporting a user,    a back frame rotatably secured on said base with a pivot axle for supporting a back of the user and for allowing the user to force and to rotate said back frame relative to said base about said pivot axle,    a lever rotatably secured to said base,    a foot support secured to said lever and slidable and movable relative to said base, and    means for selectively coupling said lever to said back frame.    
     
     
         2 . The exerciser according to  claim 1  further comprising a follower tube secured to said lever, and a rod slidably secured to said follower tube, said foot support is secured to said rod.  
     
     
         3 . The exerciser according to  claim 2  further comprising means for slidably supporting said follower tube on said base.  
     
     
         4 . The exerciser according to  claim 3 , wherein said slidably supporting means includes a roller disposed on said base, said follower tube is engaged on and supported on said roller.  
     
     
         5 . The exerciser according to  claim 2  further comprising means for adjusting said rod relative to said follower tube.  
     
     
         6 . The exerciser according to  claim 1  further comprising means for biasing said foot support against a sliding movement of said foot support relative to said base.  
     
     
         7 . The exerciser according to  claim 1 , wherein said selectively coupling means includes at least one bracket secured to said back frame and rotatably secured to said base with said pivot axle, said lever includes at least one leg pivotally secured to said base with said pivot axle, and means for selectively securing said lever to said at least one bracket.  
     
     
         8 . The exerciser according to  claim 7 , wherein said selectively securing means includes a fastener engaged through said at least one leg of said lever and said at least one bracket to selectively secure said back frame and said lever together.