HUB DRIVEN DIRECTLY BY CRANK

摘要

The present invention relates to a hub driven directly by a crank and, more specifically, to a hub driven by directly connecting the crank to a hub shaft without a transfer device such as a chain for transferring the rotation force from the crank to the hub. The hub comprises a hub shell to which spokes are connected; a hub shaft formed in the center of the hub shell, to which the crank is connected and in which the rotation force from the crank is inputted; an internal gear which is formed between the hub shaft and the hub shell and transfers the rotation force inputted through the hub shaft to the hub shell; and fixed axles which are formed on both sides of the hub shell to be fixed to a frame.