Students in Switzerland have developed a prototype called Scewo, a wheelchair that can climb stairs by incorporating 3 components of traction.
The combination of the agility and comfort of two big wheels to drive around on flat ground and the robustness of tracks to overcome curbs and climb stairs is unique.The rubber tracks allow to smoothly go up and downstairs in a safe manner.
It is still a demonstration prototype and under active development.
Watch the video below:
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