초록 ▼

A wheelchair suspension system comprises a suspension assembly disposed adjacent to each wheel of the wheelchair, and attached to an interconnecting the axle of the wheels to the wheelchair frame. Each of the suspension assemblies includes a front bracket and a rear bracket, wherein the front bracke

A wheelchair suspension system comprises a suspension assembly disposed adjacent to each wheel of the wheelchair, and attached to an interconnecting the axle of the wheels to the wheelchair frame. Each of the suspension assemblies includes a front bracket and a rear bracket, wherein the front bracket is attached to the wheelchair frame and the rear bracket is attached to the axle. Top and bottom generally L-shaped arms each are pivotally attached to each of the brackets in a diametrically opposed fashion, and an elastomeric spring is disposed between and interconnects the arms. When one or more of the wheels encounters a bump in a travel surface of the wheelchair, the arms pivot about the brackets, remain parallel to each other, and move closer together to compress the spring which absorbs a significant amount of shock caused by the bump. Further, the wheelchair has a frame with a pair of frame extensions that are supported by a transversely extending camber bar that journals the axles of thee wheelchair drive wheels. The drive wheels can be variably positioned with respect to the front casters by means of the frame extensions.

대표청구항 ▼

1. A main frame for a wheelchair having a front end and a rear end, said wheelchair main frame including:(a) at least one rearwardly extending frame extension member having a front end and a rear end, said extension member front end being attached to said main frame and said extension member rear en

1. A main frame for a wheelchair having a front end and a rear end, said wheelchair main frame including:(a) at least one rearwardly extending frame extension member having a front end and a rear end, said extension member front end being attached to said main frame and said extension member rear end being directly attached through a suspension mechanism to a transversely extending axle of at least one wheel of the wheelchair, so that said axle can be selectively positioned relative to the main frame front and rear ends for adjusting the center of gravity of the wheelchair.