Patent ID: 8505946

Claim:
A wheelchair device for a wheelchair, the wheelchair device comprising: a hub-supporting disc engaging a hub disposed in a wheel of the wheelchair rotatably; an arm extending from the hub-supporting disc toward a tube portion of the wheel; an outer disc fixed to an end of the arm; a power handle engaging the outer disc with a hinge hooked at an axle fixed to the outer disc rotatably, wherein the hinge is disposed at a position close to an end of the power handle; a rear wheel-holding protrusion extending inward from an end of the power handle; and a front wheel-holding protrusion extending inward from a position opposite to the rear wheel-holding protrusion with respect to the hinge, wherein the hub-supporting disc, the arm, and the outer disc are fixed to one another and configured to rotate about the hub, wherein each of the rear wheel-holding protrusion and the front wheel-holding protrusion are engaged firmly on the wheel such that the wheel rotate about the hub by pushing and pulling the power handle.