| 摘要 |
<p>A bicycle (10) may tow a trailer (12) for the purposes of carrying a heavy or large object across great distances. A motor (14) may be mounted to the trailer which drives a rear wheel (18) of the bicycle (10). To this end, a transmission is added to the rear hub of the bicycle (10) which is mechanically coupled to the output shaft of the motor (14). When the trailer (12) is detached or not used in conjunction with the bicycle (10), the rider does not have to carry the weight of the motor (14). Also, this setup provides a stable configuration since the bicycle (10) is pulling the trailer (12).</p> |
