The invention discloses a labor-saving bicycle. Two sides of a gear shaft of a chain front gear shaft are connected with one ends of two pedal arms through a rotary disc. The running effect of the bicycle is different from an existing bicycle in the world at present by using a new method. The existing technical problems of the existing bicycle with a running structure that pedal arms rotate by 360 degrees in the world at present that 1 the running speed is low and the labor is wasted, 2 the bicycle cannot be run in an upslope road can be solved. In order to solve the main points of the technical scheme and main usages, the existing bicycle with the running structure that the pedal arms rotate by 360 degrees is changed into the bicycle with a structure that two long pedal arms move up and down within 100 degrees. The bicycle is manufactured to enlarge the new structures of two ends of a chain front gear and one ends of the pedal arms. The labor can be saved, during running in the upslope road, the speed is high, the running is easy, compared with a bicycle with the same type, the labor can be saved by more than 70%, the linkage speed is improved by 2-3 times, and the technical problems that the running speed is low and the labor is wasted and the bicycle cannot be run in the upslope road are solved.
Labor-saving bicycle
2015-07-01
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |