Lever arm drive for e.g. bicycle, has lever arm which is brought into direction forced by circular motion of pedals through hard rubber rollers on tracks so that lever arm is extended or shortened

摘要

The drive has an extended arm i.e. lever arm (2), mounted on a pedal crank (5). The lever arm is connected with the crank by a bearing (3) during starting of the drive. The lever arm is brought into the direction forced by circular motion of pedals (11) through hard rubber rollers (7, 8) on tracks (9, 10), so that the lever arm is extended or shortened, where the impact of driving force on the rear wheel is high when the lever arm is extended. The lever arm can be driven by foot or by a motor.