Patent ID: 6571899
Filing Date: 2003-06-03
Classification: B62M

Abstract:
An apparatus for providing propulsion to a vehicle, comprising:a wheel, said wheel having an axle having first and second ends, said first and second ends of said axle corresponding to first and second sides of said wheel, a first set of spokes having first and second ends, a second set of spokes having first and second ends, and a rim, said first end of said first set of spokes affixed to said first end of said axle, said second end of said first set of spokes affixed to said rim, said first end of said second set of spokes affixed to said second end of said axle, said second end of said second set of spokes affixed to said rim; a drive hub having first and second edges, an inner wall, an outer wall, a diameter, and a circumference, said first edge of said drive hub having formed laterally therein first and second spoke slots having a width, said first and second spoke slots spaced and situated so as to each receive one of said spokes comprising said first set of spokes, providing engaged spokes, each of said first and second spoke slots having situated therein first (14A) and second (14Aâ€²) ridges having an amplitude (56) so as to narrow said width of each of said spoke slots, so as to form a notch (14) between each of said first and second ridges, said notch adapted to engage and removably retain one of said spokes, so as to engage and removably retain said drive hub to said second side of said wheel; and drive means for driving said drive hub.