Oval-track exerciser with selective handlebar operation mode

Abstract

An oval track exerciser includes a machine base with two bearing members at two sides, two handles fastened pivotally with an upright at the machine base at two sides, a wheel fastened pivotally with a front side of the machine base, two pedals, each pedal having a front end respectively pivoted to the wheel at two sides, a rear end movably supported on a respective sliding rail at the machine base, and a bearing member at an outer side on the middle, and two links, each link having a front end respectively coupled to bottom ends of the handle and a rear end respectively selectively coupled to the bearing members at the pedals or the bearing members at the machine base.

1 . An oval track exerciser comprising: 
 a machine base having a base frame and an upright upwardly extended from a front side of said base frame, said base frame having two bearing members disposed at two sides;    two handlebars each having a middle part respectively pivotally fastened to said upright, a top end for the holding of a user's hand, and a bottom end;    a wheel fastened pivotally to the front side of said base frame of said machine base;    two pedals longitudinally disposed at two sides of said wheel, said pedals each having a front end respectively pivoted to said wheel, a rear end longitudinally movably supported on said base frame of said machine base, and a bearing member at one side; and    two links each having a front end respectively coupled to the bottom ends of said handlebars and a rear end terminating in a coupling member for detachably coupling to the bearing members of said base frame or the bearing members of said pedals.    
   
   
       2 . The oval-track exerciser as claimed in  claim 1 , wherein the bearing members of said base frame and the bearing members of said pedals are respectively a cylinder; the coupling members of said links are respectively a barrel and selectively sleeved onto the cylindrical bearing members of said base frame or said pedals.  
   
   
       3 . The oval-track exerciser as claimed in  claim 2 , wherein the cylindrical bearing members of said base frame each comprise a shank disposed at an inner side, a head disposed at an outer side, and a neck connected between said shank and said head; said links each further comprises a locating screw perpendicularly threaded through the respective coupling member for engaging the neck of one cylindrical bearing member of said base frame.  
   
   
       4 . The oval-track exerciser as claimed in  claim 1 , wherein said upright comprises a top handle for the holding of the user's hands.  
   
   
       5 . The oval-track exerciser as claimed in  claim 1 , wherein said base frame of said machine base comprises two sliding rails longitudinally arranged in parallel at a rear side; said pedals each have a roller provided at the respective rear ends and respectively supported on said sliding rails.