Patent ID: 8820454

Claim:
A motorized wheelchair comprising: a frame , defining a longitudinal direction and a lateral direction perpendicular to said longitudinal direction, a battery support assembly for supporting at least one battery box , said battery support assembly being connected to said frame , first and second power drive assemblies disposed on each lateral side of the wheelchair , each of the assemblies comprising a motor and a gearbox assembly , first and second rear wheels respectively driven by said first and second power drive assemblies , first and second castor wheels pivotally connected to said frame, wherein said first and second power drive assemblies are directly fixed on the battery support assembly, wherein a first connecting arrangement pivotally connects said battery support assembly to a second connecting arrangement, so that said battery support assembly can pivot around a longitudinal axis in a front-to-back direction, and wherein said battery support assembly is pivotally connected to said frame by the second connecting arrangement, so that said battery support assembly can pivot around a lateral axis in a side-to-side direction.