Scooter Having A Gearing System

摘要

The invention is directed towards a scooter comprising a frame, a front wheel carried by the frame, a rear wheel carried by the frame, a pair of reciprocating pedals attached to the frame, a drive assembly for transferring force from the reciprocating pedals to the rear wheel comprising: a pedal cam having a plurality of openings at various distances from the rotational center of the pedal cam; a drive pin extending from one of the reciprocating pedals and is received on one of the openings; and, a gear shifting cable attached to the drive pin causing the drive pin to engage with one of the openings so that the pedal cam is rotated by the movement of the pedal so that based upon the opening engaged, the rotational power output that the pedal cam ultimately exerts on the rear wheel is varied.

主权项

1. A scooter comprising a frame, a front wheel carried by the frame, a rear wheel carried by the frame, a pair of reciprocating pedals attached to the frame, a drive assembly for transferring force from the reciprocating pedals to the rear wheel, the drive assembly comprising:
a pedal cam having a plurality of openings disposed at various distances from a rotational center of the pedal cam; a drive pin extending from one of the reciprocating pedals and configured to engage with one of the openings; a gear shifting cable attached to the drive pin, the gear shifting cable configured to cause the drive pin to engage with one of the openings of the pedal cam so that the pedal cam is rotated by movement of the reciprocating pedal wherein a rotational power output that the pedal cam operably exerts on the rear wheel is varied based upon which one of the openings is engaged with the drive pin; and the scooter further comprising a motion saver carried by the scooter, the motion saver having; a first arm pivotally connected to a second arm wherein the first arm is connected to the gear shifting cable and the second arm connected to the drive pin; and, a spring attached the first and second arms for biasing the arms in an equilibrium position so that when the gear shifting cable pulls the first arm, the spring is tensioned thereby lessened force on the drive pin allowing the drive pin to move from one opening to the next.