| 摘要 |
The present invention provides a technique for implementing a stand-riding bicycle by using a miniaturization and beautiful configuration. The bicycle is advanced through pedal reciprocation caused by a pedal angle and a pedal track which facilitate the force application of a rider. A rotating shaft is arranged on front of and above a pedal foot face on the lower dead point. Pedals and swinging chain wheels (161/2) are arranged on the top and bottom of the rear part of left and right pedal arms which are mechanically linked in a mode that the swinging movement is of a direction opposite to the advance direction. Chain anchoring devices (101/2) and Idler chain wheels (171/2) are arranged on a bicycle frame on front and back ends of the swinging chain wheels and below the pedal on the lower dead point. One ends of left and right driving chains are fixed by the chain anchoring devices, the left and right driving chains are coiled on the swinging chain wheels, the Idler chain wheels and the one-way clutch chain wheels (181/2) in sequence, so as to form the other end facing forwards, the other end is respectively connected with two ends of a U-shaped return chain which returns in an U shape on the front, such that the left and right parts are connected. |
