Patent ID: 7914028
Filing Date: 2011-03-29
Classification: B62K,B62M

Abstract:
1. An occupant propelled vehicle comprising: a frame comprising: a tubular member; a steering assembly comprising: a first member, said first member rotatably secured by said tubular member; a generally elongate second member pivotably mounted to said first member and having a first and a second end, said generally elongate second member adapted to rotate 360° about an axis passing through said first member; and a generally fork-like member secured to said first member at an end distal to said second member; a drivable wheel rotatably secured to said fork-like member via a first axle; and a drive mechanism connecting said drivable wheel to said generally elongate member, said drive mechanism adapted to convert generally oscillating motion of said generally elongate member into rotational force for said drivable wheel wherein said drive mechanism further comprises: a generally semi-circular guide way having a first and a second end, said first and second ends of said guide way being connected generally near said first and second ends of said generally elongate second member respectively; a first wire member having a first and a second end, said first end of said first wire member being connected near said first end of said generally elongate second member, said first wire member passing through said guide way and said first member; a first chain having a first and a second end, said first end of said first chain being connected to said second end of said first wire member; a first sprocket rotatably engaging said first chain; a second wire having a first and second end, said first end of said second wire being connected to said second end of said first chain; a first spring member having a first and a second end, said first end of said first spring member being connected to said second end of said second wire, and said second end of said first spring member being fixedly connected to said frame; a third wire member having a first and a second end, said first end of said third wire member being connected near said second end of said generally elongate second member, said third wire member passing through said guide way and through said first member; a second chain having a first and a second end, said first end of said second chain being connected to said second end of said third wire member; a second sprocket rotatably engaging said second chain; a fourth wire having a first and a second end, said first end of said fourth wire being connected to said second end of said second chain; and a second spring member having a first and a second end, said first end of said second spring member being connected to said second end of said fourth wire, and said second end of said second spring member being fixedly connected to said frame, wherein said first and second sprockets are secured to said first axle via a first and a second clutch, and wherein said first and second clutches permit said first and second sprockets to drive said first axle in only one predetermined direction.