| 摘要 |
An easily steerable tiller-steered battery-driven wheelchair has the axle (20) of the or each steerable wheel (6) disposed in front of the kingpin (17), giving oversteer which is not detrimental at the very low speeds to which it is restricted, the or each kingpin (17) preferably being offset laterally from the centre plane (23) of wheel, whereby the wheel turns by running around the kingpin, and a four-wheeled wheelchair (as shown) preferably has the driven wheels (5) carried by an axle carrying beam (24) extending laterally and pivoted centrally on a horizontal axis (25) on the fore-and-aft centre line of the wheelchair, to maintain driving and steering contact with uneven ground or when negotiating kerbs or steps. <IMAGE> |
