Patent ID: 7896375
Filing Date: 2011-03-01
Classification: B62M

Abstract:
1. An arm and leg powered bicycle comprising handle levers, a front wheel, a rear wheel, a handle shaft, supporting frames, pedals, a pedal shaft, front and rear sprockets and a chain belt, the improvement comprising: an operating means for vertically rotating the handle levers and a means for transferring the rotating force of the handle levers to a pedal shaft; said operating means for vertically rotating the handle levers is composed of a handle rotation shaft provided vertically movably at the central position of the handle levers, one or two operating rods connected to the left side, right side or both sides of the handle levers, said one or two operating rods being operated according to the raising or lowering movement of the handle levers and a handle rotation shaft support; said handle levers are provided so as to be rotatable around the handle lever rotating shaft as the rotation center, by the operation of an actuating pin, said actuating pin being provided on the top of the handle shaft, said actuating pin being provided to be connected to the handle rotation shaft; said means for transferring the rotating force of the handle levers to a pedal shaft comprises a crank shaft connected to the operating rod or rods and rotatable by the vertical movement of the operating rod or rods, a rotating shaft inserted in the inner cavity of a lower supporting frame connected to a handle shaft supporting member, said rotating shaft acting to transfer the driving force of the handle levers to the pedal shaft, a flexible joint provided at one end of the rotating shaft, a driving gear provided at the other end of the rotating shaft, and a driven gear mounted on the circumference of the pedal shaft and engaged with the driving gear to transfer the rotation force to the pedal shaft; and accordingly, the handle levers and the pedals are moved oppositely to each other to cause the vertical rotation of the handle levers to cooperate synchronously with the movement of the pedals.