The Rover Group has invented a system that could reduce leg injuries in car
crashes. Car occupants鈥� knees are often injured when they bounce off springy
interior panels. Rover says the answer is to fit the panels on a ratchet
mechanism that collapses under impact, reducing injuries (GB 2 335 171). Each
ratchet is made just strong enough to withstand the forces applied when panels
are fitted, but weak enough to break in an accident.
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