Patent ID: 7229386

Claim:
An oval-tracked exercise apparatus comprising: a) a main frame having: i) two planks, each of the two planks has a connecting member located on a first plank end and a driving end located on a second plank end thereof; ii) two connecting arms, each of the two connecting arms has a first connecting arm end connected to the main frame; and iii) transverse support; b) a mechanical system having: i) two auxiliary rods, each of the two auxiliary rods has a first auxiliary rod end pivotally connected to the connecting member of one of the two planks; ii) two swing rods; iii) two pivoting rods, each of the two pivoting rods has a first pivoting rod end pivotally connected to a middle portion of one of the two swing rods; iv) two coupled arms, each of the two coupled arms is pivotally connected at a first coupled arm end to the connecting member of one of the two planks and is connected at a second coupled arm end to a first swing rod end of one of the two swing rods; and v) two handles, one of the two handles is connected to a second swing rod end of each of the two swing rods; and c) a resisting rotating mechanism, the driving end of each of the two planks is pivotally connected to opposing sides of the resisting rotating mechanism, wherein each of the two connecting arms has a second connecting arm end pivotally connected to each of a second pivoting rod end of one of the two pivoting rods and a second auxiliary rod end of one of the two auxiliary rods by the transverse support.