| 摘要 |
<p>The device has a single main lever (9) actuated by a system of pedals (1) and cranks (2) integral with a crankshaft (3) for multiplying a drive force with variable torque. The pedals and the cranks transform a reciprocating motion from top to bottom into rotary movement intended for movement of a bicycle. The crankshaft actuates a rod (4) guided by a carriage (7) sliding on an axle (5) perpendicular to an axis (Z) of the pedals, where the carriage slides from top to bottom to transmit the reciprocating motion to the main lever.</p> |
