Patent ID: 6412802
Filing Date: 2002-07-02
Classification: B62M,Y10T

Abstract:
A rectilinear propulsion apparatus in combination with a bicycle for propelling the bicycle, wherein the bicycle includes a drive wheel and a frame having a middle frame portion, the rectilinear propulsion apparatus comprising:a rectilinear drive portion, said rectilinear drive portion including a plurality of rack gear assemblies, each of said rack gear assemblies having a pedal member, each of said pedal members being adapted for being depressed by a rider to propel the bicycle; each of said rack gear assemblies of said rectilinear drive portion having a rack housing member, each of said rack housing members having a channel portion, said channel portion being adapted for receiving a rack drive member such that each of said rack drive members is movable in said channel portion of an associated one of said rack housing members; a plurality of pulley members being pivotally coupled to the upper frame portion of the bicycle, a cord member being fixedly coupled to top portions of said rack drive members such that each of said pulley members are for guiding said cord member in such a manner that when one of said rack drive members is manually biased downwardly, an opposing rack drive member is biased by said cord member through said pulley members upward; a quadrant drive portion, said quadrant drive portion including a plurality of quadrant sprocket members, each of said quadrant sprocket members being adapted for engaging an associated one of said rack gear assemblies; and wherein both said rectilinear drive portion and said quadrant drive portion are fixedly coupled to the middle frame portion of the bicycle such that said portions being adapted for propelling a bicycle.