ADJUSTABLE WHEELBASE WHEELCHAIR

摘要

Applicant's invention is of an improved multi-wheeled vehicle having adjustable wheelbase dimensions. The preferred embodiment is a wheelchair (10) which is adjustable as to length and width "on-the-fly." Contracting the two side frames (22) effects a simultaneous retraction of the forward wheel struts (30). Thus, the length of the wheelchair (10) is reduced at the same time the width is reduced, and vice versa. The linkage between the two side frames (22) is preferably two cross members (46) in an X configuration, one end of each cross member (46) being pivotally affixed to one side frame (22) on one side of the wheelchair (10), with the respective other end of each cross member (46) being pivotally affixed to a wheel strut (30) on the opposite side of the chair (10), the two wheel struts (30) each being slidably attached to a respective side frame (22).