Nils Bohlin

Bohlin's three-point seat belt, introduced by Volvo in 1959, made a safety restraint practical for everyday drivers and passengers. His aviation background met the company's wider vehicle-safety work: the important change was a design that held both upper and lower body while remaining straightforward to use. Earlier belts and harnesses were already available. He earns a place here because usability helped an engineering idea become a routine action.