Patent ID: 7784808

Claim:
A rear-pedaling standing type bicycle structure, comprising: a front wheel, installed at the front of a bicycle frame through a front tube with a front fork, and a vertical tube with a handle; a rear wheel, installed at the rear of the bicycle frame, and having a flywheel installed at an axle of the rear wheel; a shaft, installed at a position proximate to the front of the bicycle frame, and having a crankset installed at the shaft, and a driving means of a transmission module installed on both ends of the shaft and with an included angle of 180 degrees; a driven gear wheel, installed at a position proximate to the rear of the bicycle frame; and a first driving chain, installed between the driven gear wheel and the crankset of the driving means; characterized in that pedals are pivotally coupled on both lateral sides of the front of the bicycle frame and swung up and down to drive a crank and an axle of the driving means to rotate; and the crankset of the driving means is installed on a corresponding line of the front and rear wheels, such that the left and right pedals are disposed equidistantly from both lateral sides of the corresponding line of the front and rear wheels; and a link wheel is installed between the crankset of the driving means and the driven gear wheel and driven precisely by the external side of the first driving chain; and a transmission wheel is installed coaxially at another end of the link wheel, and a second driving chain is installed around and between the transmission wheel and a flywheel of the rear wheel axle.