FIELD: transport.
SUBSTANCE: invention relates to bicycles with two front wheels. Extra front wheel 10 is fitted parallel with main front wheel 2, its diameter d making 0.7 to 0.9 of main front wheel diameter D. Extra front wheel axle is arranged below that of main front wheel 2 loaded by their dead weight. Distance L between main front wheel 2 and extra front wheel 10 makes main front wheel 0.1 to 0.2 of D. Both front wheels 2, 10 are equipped with spring dampers. In compliance with one version, wheels 2, 10 are arranged in symmetry on both sides of bicycle frame. In compliance with another version, main front wheel 2 is arranged in bicycle frame plane while that of additional front wheel 10 stays there aside.
EFFECT: higher stability and smoothness.
5 cl, 4 dwg
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Authors
Dates
2011-09-10—Published
2010-11-15—Filed