Bicycle gear changer
OwnerTranel W. Hawkinsinventor
Life of this patent
Estimating the term…
Abstract
A derailleur activating device attachable to the handlebar of a bicycle also having a frame and a derailleur with a gear cable, wherein the device has a bracket tube secured to the handlebar of the bicycle, a shifting sleeve rotatably mounted on the bracket member, a pulley rotatably mounted on the shifting sleeve and a gear cable with an end of the gear cable attached to the bracket tube. The cable is wrapped partially around the pulley such that, when the shifting sleeve is rotated, the pulley is displaced causing the gear cable to be pulled such as to shift the gears of the derailleur.
Claims7
A derailleur activating device for a bicycle having a handlebar and a frame, said device comprising:
- a derailleur with a gear cable;
- a bracket means adapted for securing said device to said bicycle;
- a shifting means rotatably mounted on said bracket means;
- a pulley, being a wheel with an outer circumferential surface, rotatably mounted on a peripheral surface of said shifting means;
- means adapted for attaching an end of said gear cable to said bracket means with said cable wrapped partially around said circumferential surface of said pulley such that, when said pulley is displaced by a user rotating said shifting means, said gear cable is pulled to shift gears of said derailleur.
Dependencies are inferred from the claim text.