Driving gear e.g. for vehicle powered by transmission power, for bicycle, has vehicle propelled by power and transmission connected firmly with crankshaft with mechanism and drive wheel connected with propelable wheel

摘要

The drive has a vehicle propelled by power and a transmission connected firmly with a crankshaft. A transmission mechanism and a drive wheel are connected with a propelable wheel. The transmission (11) has a geometrical form, deviating from a circular disk and firmly connected to the crankshaft. The crankshaft (8) is arranged with two crank arms (5) connected 180 degrees to each other. The drive transmission has a chain wheel drive and has a delimited outline corresponding to an oval.