Design and analysis of commode type manual wheel chair

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CH. SOMSHEKHAR RAO, Dr. S. Shyam Sunder Rao


According to WHO 75% Million people uses wheel chair but 20.3 percent population are wheelchair worthy. It is estimated that more than 70 million people need wheel chairs. But only 5 to 15 % people have access to one. The number of people aged 65 or older is estimated to grow from 534 million in 2010 to nearly 1.5 billion in 2050. This strategy represents the requirement of wheel chair is high. This project aims at modeling and analyzing manual wheel chair with commode facility, easy foldable and detach with low weight such that it can be handled easily. Modeling is done by considering standard design considerations of manual wheel chair centre folding type. Additional facilities are provided in this wheel chair with easy to detach the commode plate, easy positioning of the wheel chair on commode and also space is provided where the commode can be attached to seat base itself. The seat is modeled with a metal plate with pin joint at one end and free to open on other end which helps in folding wheel chair. On top of the seat thick PU cushioning is arranged which provide comfort for the user even during long duration seat on wheel chair. Front table board which helps to place food, books etc. it increases the user’s comfort. Double rimmed wheels with more strength compared to standard wheels. Analysis is performed using T6-6061, T6-6063 material which is light in weight and also with SS material. Further analysis is done on wheel chair with different body weights using all three materials. Analysis results show the modeled wheel chair can withstand even for over obesity category person.

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