Patent ID: 6764088
Filing Date: 2004-07-20
Classification: B62K,B62M

Abstract:
A pedal-powered vehicle including:front and rear wheels interconnected by a frame; a drive wheel located intermediate between axles of said front and rear wheels, said drive wheel including a pair of crank members radially extending from an axle of said drive wheel, each said crank member including a connecting arm at its distal end which is substantially parallel to said axle of said drive wheel, said pair of crank members being separated by the plane of rotation of said drive wheel; a transmission link connecting said drive wheel to drive said rear wheel via a reversal gear assembly, said reversal gear assembly including a plurality of toothed wheels, at least one of said toothed wheels being a reversal wheel which engages with but is not surrounded by said transmission link so that, during normal operation, the angular rotation of said drive wheel and said reversal wheel are in opposite directions, and a plurality of toothed wheels engaging with and surrounded by said transmission link located downstream of said reversal wheel so that said transmission link will move from said reversal wheel onto said plurality of toothed wheels before returning to said drive wheel; a pair of footboards separated by the plane of rotation of said drive wheel, each said footboard being pivotable about a footboard axle substantially parallel to the axle of said drive wheel, said footboard axle being intermediate of the axles of said drive wheel and said front wheel, said connecting arm of said crank member being slidable along at least a portion of the footboard on the same side of said drive wheel, said footboard and said connecting arm being disposed so that downward pivotal movements of said footboard cause sliding and rotation of said connecting arm in a direction to drive said vehicle.