Patent ID: 8201839

Claim:
A bicycle having a bidirectional input and a one-way output, comprising: a load wheel set driven to cause motion of the bicycle; an input device for receiving a dual rotary direction input including a first driving rotary direction and a second driving rotary direction which is opposite to the first driving rotary direction, an output terminal of the input device for transmitting a kinetic energy derived from rotation of the input device, wherein the input device includes a pedal, a crank, and a driving wheel set, or a handle, a hand shank, and a driving wheel set; a drive device for receiving a bidirectional input and producing a one-way output, an input terminal of the drive device for receiving the kinetic energy from the output terminal of the input device, an output terminal of the drive device producing a constant rotary direction output for driving the load wheel set; and a pre-transmission device installed between the input device and the drive device and including rotary transmission structures constituted by at least one of a gear type, a belt type or a friction-type, wherein the pre-transmission device transmits the kinetic energy to the drive device, wherein the drive device includes transmission components constituted by at least one of a gear set, a friction wheel set, a chain and sprocket section, a belt and pulley section, a transmission crank and wheel set, a fluid transmission unit, and an electromagnetic force actuator, wherein when the input device receives the first driving rotary direction, a first transmission gear train drives the output terminal of the drive device for producing the constant rotary direction output, and when the input device receives the second driving rotary direction, a second transmission gear train drive the output terminal of the drive device for producing the constant rotary direction output, wherein a first one-way transmission is installed between the first transmission gear train and the second transmission gear train for preventing interference from the second transmission gear train when the first transmission gear train drives the output terminal of the drive device, and a second one-way transmission is installed between the second transmission gear train and the first transmission gear train for preventing interference from the first transmission gear train when the second transmission gear train drives the output terminal of the drive device.