Patent Document ID: 9815518
Application ID: 15027596
Patent Flag: 1

Claim One:
1. A dual-drive prone bicycle comprising a frame, a front wheel, a rear wheel, a front drive component and a rear drive component, wherein the front wheel and rear wheel are mounted on a front portion and a rear portion of the frame; wherein the rear drive component comprises a rear wheel drive mechanism for driving the rear wheel and a treadle mechanism for driving the rear wheel drive mechanism; and a dynamic knee support member having synchronous movement with the treadle mechanism is provided between the treadle mechanism and the frame, wherein the dynamic knee support member is connected to a rear or middle portion of the frame; wherein the rear wheel drive mechanism comprises a first driven sprocket, a first drive sprocket and a first chain; wherein the first driven sprocket is mounted on the rear wheel, the first drive sprocket is mounted in the middle of the frame, and the first chain is surrounded on the first driven sprocket and the first drive sprocket; wherein the treadle mechanism comprises a pair of cranks, a pair of pedals and a pair of pedal connecting rods on both sides of the frame; wherein one end of each crank is permanently connected to the first drive sprocket center while the other end is pivotally connected to a pedal connecting rod, and the other end of the pedal connecting rod is connected to the pedal; wherein the dynamic knee support member comprises a pair of rockers and a pair of knee support pads on both sides of the frame; wherein an upper end of each rocker is pivotally connected to a rear upper portion of the frame, and a lower end is pivotally connected to the pedal spindle; wherein the rocker, the pedal connecting rod and the crank on one side of the first drive sprocket form a group of crank rocker mechanism; and each knee support pad is mounted cantileveredly in a middle of the pedal connecting rod with a support.