Lever arm transmission for installation in bicycle, has bearings dragged downward by ropes, where force is transferred to bearing, to gear rims, to endless chain and thus drives rear wheel of bicycle

摘要

The lever arm transmission comprises bearings, (38,39,40,42,43), which are dragged downward by ropes (13,16). The force is transferred to bearing (26), to gear rims (28,29), to endless chain (30) and thus drives the rear wheel of bicycle. The set force is multiplied by lever arm. The force is strengthened by machine roller around triplex. The force is strengthened again around the triplex by rollers (14,15,17,18,21,23).