SCOOTER Russian patent published in 2004 - IPC

FIELD: transport engineering. SUBSTANCE: invention relates to vehicles operated by man power. Proposed device contains frame with support for several humans, front and rear wheels, handlebar, foot drive 24.1, 24.2, 24.3, 24.4 and transmission formed by planetary gear mechanism and gear trains. Planetary gear mechanism has two sectional central wheels. Central wheel composed of wheels 1.1 and 1.2 is non-round. Sectional gear wheels 4.1-4.4 of other central wheel are secured on hollow coaxial shafts 6.1-6.4 forming sectional drive shaft. Carrier B is driven and provided with gear rims 9, 10 to transmit torque to rear wheel. Planet pinions are double-row. Planet pinions 2.1 and 2.3 engaging with non-round central wheel are round and they are eccentrically displaced relative to their axles 5.1, 5.3 through value of displacement of non-round central wheel and they have equal number of teeth with said wheel. EFFECT: compact multiplace vehicle capable of reducing energy losses for movement by using weight to provide uniform torque on drive wheel. 3 cl, 4 dwg