Mecanum wheel
The Mecanum wheel is a wheel which can move in any direction. It is sometimes called the Ilon wheel after its Swedish inventor, Bengt Ilon, who came up with the idea in 1973.
It is a conventional wheel with a series of rollers attached to its circumference, these rollers having an axis of rotation at 45° to the plane of the wheel in a plane parallel to the axis of rotation of the wheel. As well as moving forward and backward like conventional wheels, they allow sideways movement by spinning a pair of wheels in opposite directions.
The U.S. Navy bought the patent from Ilon and put researchers in Panama City to work on it in the 1980s. The Navy has used it for moving items around ships.
External links
- www.airtrax.com - the video footage on this website clearly shows vehicles moving sideways, turning on the spot, moving diagonally, and combining these movements