US 8,505,946 B2 · Wheelchair device

Abstract

A wheelchair comprises a hub-enclosing open ring engaging a hub disposed in a wheel rotatably, bars extending from two ends of the hub-enclosing open ring, an crescent-shaped cap member fixed to the bars above the tube portion, a power handle engaging the crescent-shaped cap member rotatably through an L-shaped end of the power handle, a wheel-holding plate fixed to the power handle with an angle and covered by the crescent-shaped cap member. The wheel-holding plate comprises a holding edge for pressing down on and holding the wheel. The hub-enclosing open ring, the bars, and the cap member are fixed to one another and configured to rotate about the hub, and the holding edge of the wheel-holding pate is configured to be pressed down on and engaged firmly to the wheel such that the wheel rotates about the hub by pushing and pulling the power handle.

Claims19

Dependent claims

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.

6 more elements

Dependencies are inferred from the claim text.

Wheelchair device

Life of this patent

Wheelchair device

Life of this patent

Abstract

Claims19