Wheelchair convenience attachments
Self-propelling and steering attachment for a wheel-chair
Wheel chair auxiliary drive means
Hand-pedalling attachment for wheel-chairs
Auxiliary frame for a wheelchair and wheelchair for use with an auxiliary frame
Bicylce with a double power train Patent #: 5533741
AbstractAn auxiliary frame having propulsion and steering devices is combined with a wheelchair to form a composite vehicle therewith. A coupling mechanism is provided to couple the auxiliary frame to a wheelchair. A steerable wheel is mounted on the wheelchair to steer and provide forward and reverse movement to the wheelchair, and, a control device is provided to permit the operator to control the direction the wheelchair is to be driven.