Dual-Drive Hub Device

摘要

A dual-drive hub device is mounted on a rear wheel of a bicycle and has a hub, a main shaft mounted through the hub, and two rear pedals connected to the main shaft. At least one one-way bearing is tightly fitted between the hub and the main shaft. A rear transmission wheel of a transmission system of the bicycle is mounted around the hub. When two front pedals of the bicycle are pedaled, the hub and the rear wheel rotate accordingly. When the rear pedals are pedaled, the main shaft, the hub and the rear wheel rotate accordingly. Thus, a rider and a passenger can pedal the front pedals and the rear pedals simultaneously and enjoy ease of bicycle pooling.

主权项

1. A dual-drive hub device comprising:
a hub having
a mounting channel formed in the hub and axially extending through two opposite ends of the hub;two annular flanges disposed around an outer surface of the hub and respectively disposed adjacent to the ends of the hub, and each of the annular flanges having multiple through holes formed through the annular flange and arranged around the outer surface of the hub;two mounts respectively protruding axially from the ends of the hub; anda fastening portion formed on an outer surface of one of the mounts; a main shaft mounted through the mounting channel of the hub and having two fastening ends respectively protruding out of the mounting channel from the ends of the hub; at least one one-way bearing securely mounted around the main shaft, and disposed and tightly fitted between the main shaft and the hub; two bearing sets mounted on the main shaft and respectively disposed adjacent to the fastening ends of the main shaft; and two rear pedals respectively and securely connected to the fastening ends of the main shaft.