Patent ID: 8505945

Claim:
A human-powered scooter device propelled by side-to-side movement of a user, comprising: at least one forward located wheel; at least a first and a second rearward located wheel; a steering mechanism having a vertically ascending steering control shaft and operably coupled to said forward located wheel such that turning of said steering mechanism achieves turning of said forward located wheel; a first frame arm extending diagonally rearward from said steering mechanism to said first rearward located wheel, and a second frame arm extending diagonally rearward from said steering mechanism to said second rearward located wheel, the frame arms configured to at least operably support the user riding the scooter device; wherein each of said first and second frame arms is pivotably coupled to said steering mechanism, with respective pivoting axes of said first and second frame arms being non-parallel to each other and forming a forward-facing angle therebetween of less than 180 degrees; and further comprising a mechanical plate member that is mounted about the steering control shaft for slidable movement up and down and rotatable movement fore and aft, wherein the mechanical plate member releasably engages with the frame arms in a manner that affects a range of movement of the frame arms when engaged with the frame arms.