Patent ID: 9333130
Filing Date: 2016-05-10
CPC Classification: A61G,B60K,B60Y,B62D,Y10S

Claim Text:
1. A wheelchair comprising: a frame; a seat supported by the frame, the seat being moveable between a first position and a second position; a support that connects the seat to the frame; a pair of opposing drive wheels, the drive wheels defining a drive wheel axis; a transverse beam pivotably coupled to the frame rearward of the drive wheels, the pivoting transverse beam having a pair of rear idler wheels coupled to opposing ends thereof; at least one battery assembly supported by the frame and positioned substantially rearward of the drive wheel axis and substantially rearward of the support, wherein the at least one battery assembly is accessible rearward of the drive wheels when 1) the seat is in either the first position or the second position, and 2) without having to fully remove the seat; and a pivoting assembly associated with each drive wheel and including a drive assembly and a front arm assembly, each drive assembly (i) including a motor and gearbox that are transversely mounted relative to the frame, (ii) being operatively coupled to one of the drive wheels, and (iii) being pivotally connected to the frame, each front arm assembly including a front caster wheel rotatably coupled to an arm, the front arm assembly being rigidly coupled to the drive assembly, whereby the drive assembly and front arm assembly pivot about the pivotal connection when the front caster wheel encounters an obstacle.