Patent ID: 7399259

Claim:
An elevating exercise bicycle comprising: a bicycle frame having an adjustable seat assembly, an inclined vertical tubular member supporting the seat assembly, an attached handlebar, a control and instrument panel and a pedaling system having a drive chain sprocket, pedals connected to the sprocket, a hydraulic pump and a drive chain interconnecting the drive chain sprocket to the hydraulic pump; a lifting arm assembly having a base frame adapted to be anchored to a support surface via anchors, an A-frame shaped upper lifting arm and an A-frame shaped lower lifting arm, each pivotally interconnecting the base frame to the bicycle frame to define a substantially parallelogram configuration, a main hydraulic cylinder and an auxiliary hydraulic cylinder, each pivotally interconnecting the upper lifting arm to the base frame, and a hydraulic reservoir tank housed within the base frame; wherein one end of each of the lifting arms is pivotally connected to the base at a distinct location and the opposite end of each of the lifting arms is pivotally connected to the bicycle frame at a distinct location such that the parallelogram configuration and rotation of the pedals by an occupant actuates the hydraulic pump to provide oil from the hydraulic tank to the main cylinder to extend a piston of the main cylinder to lift the bicycle frame from a rest position to a raised position while the pitch angle of the inclined vertical tubular member of the bicycle frame remains substantially constant relative to the base frame.