A novel dual wheel front steering, single or dual wheel rear drive, three or four wheeled human powered vehicle which is extremely stable to operate. The invention is configured with a novel strong lightweight frame assembly incorporating a novel steering system and a pedal, crank and chain transfer drive system. The invention is configured in which the driver is seated in an upright position for maximum ergonomic efficiency and minimum propulsion effort. Said position also provides for easy mounting and dismounting on to and off of the vehicle. The invention is further configured with a novel steering system that is completely adjustable and incorporates Ackermann steering geometry to reduce wheel turning scrub and preserve forward momentum. The invention is further configured with components that are easily fitted with various manual drive systems, multiple gear ratio drive mechanisms, or power drive system such as an electric motor or similar device. The invention is more easily operated by children, elderly, and the handicapped than bicycles, traditional tricycles, and other three-wheeled human powered vehicles and is easily adapted for use by the handicapped.
Three or Four Wheeled Human Powered Vehicle with Dual Wheel Front Steering and Single or Dual Wheel Rear Drive
2018-12-06
Patent
Electronic Resource
English
IPC: | B62K Fahrräder , CYCLES |
European Patent Office | 2020
|Rear-, front- or four-wheel drive
Engineering Index Backfile | 1965
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