×

Multi-terrain motorized wheelchair apparatus

  • US 8,789,628 B2
  • Filed: 07/14/2009
  • Issued: 07/29/2014
  • Est. Priority Date: 07/14/2009
  • Status: Active Grant
First Claim
Patent Images

1. A multi-terrain motorized personal transport apparatus, comprising:

  • a seating assembly for supporting a user in a seated position;

    a track assembly for resting upon a ground surface, the seating assembly being pivotable with respect to the track assembly, the track assembly including a pair of track units positioned on opposite sides of the seating assembly, each of the track units including a plurality of wheel structures and a continuous track entrained on the wheel structures, the plurality of wheel structures being arranged so that an uppermost one of the wheel structures forms an upper apex in the continuous track;

    a seating orientation adjustment assembly configured to adjust an orientation of the seating assembly with respect to the track assembly; and

    at least one drive assembly carried on the seating assembly, the at least one drive assembly including a motor and at least one drive shaft structure connected to the motor and to the uppermost one of the wheel structures of the continuous track of the track units to drive the track units;

    wherein the seating assembly and the motor of the at least one drive assembly are supported on the track units of the track assembly by the drive shaft structure so that the seating assembly and the motor pivot as a unit with respect to the track assembly about a common pivot axis of the drive shaft structure, the common pivot axis passing through the uppermost one of the wheel structures located at the upper apex of the continuous track;

    wherein each track unit forms a ground contact surface extending continuously from a location forward of the seating assembly to a location rearward of the seating assembly; and

    a stabilization assembly configured to enhance stability of the track assembly when the seating assembly is tilted rearwardly with respect to the track assembly.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×