Flexup Tire Design Good For Tumblebugs

Check out the playful "tumblebug" design at 1'10" in this Designboom video:


(Unusual tire design at 1'15')

The ‘flexup’ design consists of one single wheel which expands and contracts through a principle of divided treads which makes it possible to move freely even when the stairs are encountered. it can also freely turn any corner on flat ground by using a titling technique similar to when skiing.

Fans of Neal Stephenson's excellent 1992 novel Snow Crash remember the cool smart wheels:

On the end is a squat foot, rubber tread on the bottom, swiveling on a ball joint. As the wheel rolls, the feet plant themselves one at a time, almost glomming into one continuous tire...
(Read more about smart wheels)

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