Traction system using a double-crank alternating cycle
OwnerManuel Reyes Martinez Murcianoinventor
Life of this patent
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Abstract
Double crank alternating cycle traction system in which two independent free-turning cranks with a dynamic articulation at the place where the force is applied are strategically added to a conventional pedal cycle. The operation of the resulting mechanical composition increases the mechanical advantage of the original system. The invention is applicable to pedal cycles, mainly all kinds of bicycles, i.e. bicycles, tricycles, four-wheeled bicycles, moved by the extremities of the human body, i.e. the hands or feet.
Claims4
A double crank alternating cycle traction system which, based on the conventional structure of pedal cycle, which includes a bottom bracket axle, to which two opposite push rods are connected, where said unit is also connected to a disc, gears, belt or element taking part in the transmission in question, push rods connected to the axles for connecting the corresponding pedals elements for operating the system;
- characterised because each push rod is connected to a crank, positioned on an imaginary plane parallel to it, finished at one end with a turn axle, parallel to the bottom bracket axle but eccentric to it, at a certain distance, connected to a double bearing, cranks with a hole at one end that coincides with the pedal axle, with the particularity whereby the opposite end of each push rod is connected to the pedal axle by means of a dynamic articulation.
Dependencies are inferred from the claim text.