A lever propelled bicycle providing elements allowing it to have significant performance, friction reduction, standard bicycle weight and a wide range of downward pedal to rear wheel turn ratio due to the following mechanical configurations: These include, a drive axle and reciprocal axle elevated near each other to keep the frame upon which these components rest on, narrower in side width or surface area; the fulcrum of the propulsion levers in front of the rear wheel axle and pedals in conventional ergonomic positions to provide a force multiplying machine with above average torque; and a reciprocal means utilizing two pulley wheels to carry an adaptable linear apparatus over their upper and outfacing surfaces for the purpose of transferring the downward pull of the linear apparatus by the right lever machine to lift the left lever up in a vertical 90 degree pivotal motion and vice versa, resulting in a smooth transfer of reciprocal power with reduced friction and weight. Furthermore, the pull of each lever machine in a vertical vector of force eliminates inward angular pulling pressure on each lever machine, which prevents each lever machine from being bent out of vertical alignment during pedaling.
Lever enhanced pedaling system with elevated crank sprockets
2018-05-10
Patent
Elektronische Ressource
Englisch
Lever enhanced pedaling system with elevated crank sprockets
Europäisches Patentamt | 2020
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