POSITION-ADJUSTABLE VEHICLE

摘要

A movable vehicle (10) includes a first frame member (12), a second frame member (14, 16), and a biasing mechanism (118). The first frame member (12) includes a front wheel (26) and a handlebar (20) configured to turn the front wheel (26) in various directions. The second frame member (14, 16) has at least one rear wheel (52) and is coupled to the first frame member (12) such that the first frame member (12) can rotate with respect to the second frame member (14, 16). The biasing mechanism (118) is operatively coupled to the first and second frame members (12, 14, 16) and biases the front wheel (26) in a preferred direction, such as a straight direction. The biasing mechanism (118) may include a resilient gasket and a cavity having at least partially corresponding polygonal cross sections.