| 摘要 |
A propulsion and steering device for a conventional wheelchair or the like which includes a frame and attachment instrumentalities extending from the frame to the wheelchair, propulsion and steering instrumentalities which form a part of the frame and include a steerable wheel, and a folding instrumentality integrally formed with the frame to collapse the frame for storage, in which the folding mechanism is relatively adjustable which changes the steering rake angle to accommodate people of different dimensions, and the propelling area is rotatably adjustable to similarly accommodate people of different dimensions.
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