Leveraged Freedom Chair Indian Trial and Dissemination

Massachusetts Institute of Technology, 2010 - $16,500

This E-Team is developing the Leveraged Freedom Chair (LFC), a lever-propelled wheelchair designed specifically to meet the mobility needs of people with disabilities in developing countries. Any wheelchair designed for developing countries needs to be both maneuverable in the home and able to travel long distances on rough roads; the LFC meets the requirements with a lever drive train that allows the rider to use mechanical advantage to efficiently traverse virtually any terrain.

The LFC looks like a normal wheelchair, but with tall levers pointing up from the wheels and a bike-like third wheel attached the to axle. Placing your hands high on the levers and pumping them back and forth generates high torque and an effective low gear; placing your hands low on the levers creates high angular velocity in the drivetrain and an effective high gear.

The E-Team will design and test the LFC in partnership with the largest disability organization in the world, the Indian organization Bhagwan Mahaveer Viklang Sahayata Samiti (BMVSS), Jaipur, also known as Jaipur Foot.

Updates:

  • CNN features the Freedom Chair (April 2011)
  • The team will produce 200 chairs in June 2012 and have capacity to make 500/month. In a small test of ten users in India, four individuals with LFCs gained employment as a result of their newfound mobility.
  • The team is a finalist for MassChallenge and recently released a new 2-minute video (October 2012)
  • GRIT was one of four $100k Diamond Winners at MassChallenge. Congrats! (October 2012)