Patent ID: 6932370

Claim:
A human-powered, ride-on vehicle, comprising: a main longitudinal frame member having a steering/drive mechanism mounted thereon for oscillating movement; a rear wheel receiver located adjacent one end of said main longitudinal frame member; a driven rear wheel having an axle, wherein said axle is received in said rear wheel receiver; a rear sprocket operatively fixed to said rear wheel for coastable engagement therewith; a pair of spaced apart, steerable front wheel located adjacent the other end of said main longitudinal frame member and operatively connected to said steering/drive mechanism; wherein, said steering/drive mechanism includes: a teeter arm mounted on a teeter arm mount to said main longitudinal frame member intermediate the ends thereof for pivoting movement in a fore direction and an aft direction; a handle bar located atop said teeter arm for use by a rider to impart a motive force to the vehicle; a drive mechanism including first and second drive linkages, wherein said first drive linkage provides a motive force to said driven rear wheel during a first power stroke and said second drive linkage provides a motive force to said driven rear wheel during a second power stroke, and wherein said drive linkages are connected to said teeter arm so that, for equal movement of said teeter arm in said for and aft directions, the motive force of said first power stroke is between about one to three times that of said second power stroke, wherein said first drive linkage is connected to a lower connection point located below said teeter arm mount on said teeter arm and provides power during a first power stroke, and wherein said second drive linkage is connected to an upper connection point located below said teeter arm mount and provides power during a second power stroke, and wherein said drive linkages each include a connection point on said teeter arm, a drive chain connected at one end thereof to said connection point, and a drive sprocket driven by said drive chain; and which includes a drive axle extending through and operable with said drive sprockets to drive a front sprocket, which is connected to said rear sprocket by a main chain.