Multiple gear shift hub has control cam carrier unit with cam turning round geometric axis at angle to plane normal to axis

摘要

The hub has at least one planetary transmission with gear ratio selecting sunwheels and other free sunwheels. An axially displaceable sunwheel state changer is move by cams in a cam carrier unit with cam resting elements which can be adjusted radially by the use of a gear changing signal line to engage with and disengage from one of the cams.