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KANGAN ROO Project R&D by Kangan Batman TAFE then collaboration with CATEA. Evolution of a concept, research, proof of concept, development, build, research, build, research, collaborate, research, build … Then the hard part commercialise. Design process by Colin Johanson.
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KANGAN ROO ProjectR&D by Kangan Batman TAFE then collaboration with CATEA Evolution of a concept, research, proof of concept, development, build, research, build, research, collaborate, research, build … Then the hard part commercialise. Design process by Colin Johanson
Identify Need or Problem • Electric wheelchairs built to suit large percentile of users – too heavy. • Motors inefficient – old technology. • Batteries a major weight component. • It HAS to look stylish and visually less dominant – see the person not the chair
Look at Sports Chair for Power • Follows body to be less visually obtrusive • Light weight frame – power/weight ratio • New technology materials – titanium frame • Easier to transport, better ride, more compact • Apply this thinking to powered solution
Design Timeframe • 1981 - Initial concept imagined of mid wheel, wheelchair with five to six wheels. But needed better motors and batteries. • 2003 – Presented idea to Institute. • 2004 – Research at RESNA Conference. • 2004 – Built “Proof of Concept” prototype
Kangan Roo Wheelchair – V1 “Proof of Concept” Prototype 2004. Worked better than expected for heavy Lead/acid battery and steel frame – kept secret then shown to Patent Attorney. Provisional Patent eventually formulated from this basis.
Kangan Roo Wheelchair – V2 • Second Prototype built 2005. • With Provisional Patent in place could be developed with students in class. • Alloy frame, light NiMH battery, still old heavy wheel gearbox and motor but electric shortening. • Won Judges’ and Viewers’ Choice Episode Award on ABC ‘The New Inventors’ program Feb 2006.
Protoype Version 2 Video Play video
Collaboration • Search for better hub motors led to e-mails and MNDA with CATIA along with other US manufacturers. Video sent of functional chair. • CATIA liked my frame design – collaboration. • Prototype motors delivered needed new axles designed, controller modified, new battery pack and charging circuit. New titanium sports frame.