| 摘要 |
<p>An occupant driven device (22) using muscular force, typically feet and whole body weight. Two wheel-assemblies (20, 30; 24, 32) are forcefully separated by the muscular force whereby a unidirectional rotation mechanism (38) promotes directed motion of the cart. A flexible member (26) is used for contracting the distance between the separated wheel assemblies, typically employing a spring. A steering mechanism is provided in some embodiments. A coordinated balance mechanism is provided in some embodiments.</p> |
