Patent ID: 7708291
Filing Date: 2010-05-04
Classification: B60G,B62D,B62K

Abstract:
1. A dual front wheel steering system adapted for operation with a three or four wheeled vehicle comprising: a primary stanchion extending substantially vertically from a vehicle frame; a parallel secondary stanchion extending substantially vertically from said vehicle frame; two front wheels rotationally mounted on axles; two axle supporting members housing said axles; two secondary steering arms, each rigidly mounted onto a different said axle supporting member; two first spherical posts, one each extending vertically therefrom said secondary steering arms; a linear member having a first end and a second end each with a first biaxial pivot member affixed thereon and matingly engaged with said first spherical posts; a manual steering device; a rotatable, telescopic steering column having a upper end and a lower end, an upper steering column support on said frame and rotationally housing an upper section of said steering column; a lower steering column support rotationally housing a lower section of said steering column; a main steering arm affixed to said steering column adjacent said steering column lower end; an extension plate projecting normally from one of said axle supporting members; two second spherical posts, one extending vertically therefrom said main steering arm and one extending vertically therefrom said extension plate; a steering linkage rod having a first end and a second end each with a second biaxial pivot member affixed thereon and matingly engaged with said second spherical posts; an upper A frame tilt arm having two outboard ends each one connected to biaxially pivot with an axle supporting member, and a first midpoint spacer tube pivotally connected between said primary and secondary stanchions; a lower A frame tilt arm having two outboard ends each one connected to biaxially pivot with an axle supporting member, and a second midpoint spacer tube pivotally connected between said primary and secondary stanchions and wherein said lower steering column support is rigidly affixed to said lower A frame tilt arm; and a foot steering bar rigidly mounted to and perpendicular to said primary stanchion; wherein said steering column upper end is rigidly affixed to said steering device and said steering column lower end is connected to said main steering arm, and wherein said first spacer tube's pivotal connection to said stanchions reside in a common plane with the biaxial pivotal connections on the outboard ends of said lower A frame tilt arm.