| 摘要 |
A dual-posture Electric Assist Bicycle (EAB) permits a rider to assume a rider- upright position while peddling or a rider-recumbent position while coasting with the electric assist propulsion system engaged. The rider can alternate between positions safely and while in motion. The dual-posture EAB comprises: a seat assembly, a footrest assembly and an extended handlebar assembly. The EAB's seat assembly includes an inclined backrest that is typically affixed to the EAB's seat post. Left and right footrests are affixed near the EAB's headtube. The extended handlebar typically includes means for quickly repositioning the controls while under way to optimize ergonomics for whichever seating posture is being used. In another example of the invention the frame of the bicycle is foldable into a dolly configuration for easy moving and storage. In yet another example of the invention the seat assembly, extended handlebar assembly, footrest assembly and an electric assist propulsion system are provided in kit form for converting a standard peddle bicycle into a dual-posture EAB. In still another example of the invention a trailer is provided with the EAB for towing additional batteries.
|
