Implementation of Four Bar Mechanism in Wheelchair

Abstract

There were problems faced from ancient times in transferring the patients. People who were gravely injured or ill were carried by stretcher made out of cloth or leather. With the advancements in technology wheels were incorporated in these stretchers. Which reduced exertion for carrying the patients. Although we have made further development in the field of healthcare and technology, we have not been able to address this problem efficiently. Implementing various kinds of research help us to gain more information about mobility aids. Mobility aids are used for movement of patients. Stretchers and wheelchair are the most widely used for the movement of patients. Moving the patients from wheelchair to stretcher or the medical bed is always a concern for the attendant. The mechanism which we are going to design may help people with disability to grow self-esteem; reach objects placed at higher level, deliver speech on podium, sit and sleep with comfort as this would reduce the overall weight of the wheelchairs today as well as for producing the in-expensive transforming wheelchairs. By the way, it's boring for a person to just sit for long time. Hence, we propose a design of “Implementation of Four bar Mechanism in Wheelchair” which is a boon to the medical field. Our study shows that it is possible to save more than 50% space by implementation of this mechanism in Transforming Wheelchair.