DESIGN OF SAFETY BELT AND SURVIVAL SPACE WITH REFERENCE TO THE EFFECTS OF BELTS AND VEHICLE INTERIORS ON INJURIES, AND CHECKING THE ECE RULING

ABSTIMMUNG VON SICHERHEITSGURT UND UEBERLEBENSRAUM IM HINBLICK AUF EINFLUSSGROESSEN VON SICHERHEITSGURTEN UND FAHRZEUGINNENRAUM AUF VERLETZUNGEN SOWIE UEBERPRUEFUNG DER ECE-REGELUNG

AN EVALUATION OF THE LITERATURE CONFIRMED THAT SAFETY BELTS CAN BRING ABOUT A CONSIDERABLE REDUCTION IN THE SEVERITY OF INJURY CAUSED TO VEHICLE OCCUPANTS DURING AN ACCIDENT; HOWEVER, HEAD CONTACT WITH THE STEERING WHEEL OR DASHBOARD CANNOT ALWAYS BE AVOIDED WITH CONVENTIONAL BELTS. ACCORDINGLY HEAD INJURIES ARE THE MOST FREQUENT TYPE OF INJURY, EVEN WITH BELTED OCCUPANTS. WHEN THERE IS CONTACT WITH THE STEERING WHEEL, THE MAGNITUDE OF THE HEAD LOADING DEPENDS ON THE POINT OF CONTACT OF THE HEAD AND THE STEERING WHEEL. THIS PROBLEM IS NOT COVERED IN THE ECE AND COMMON MARKET SPECIFICATIONS FOR THE DYNAMIC TESTING OF BELTS. DYNAMIC TESTS ON BELTED DUMMIES IN PASSENGER SEATS CONFIRM THE STATEMENTS IN THE LITERATURE. TESTS ON THE INERTIA REEL BELTS SHOWED THAT WITH THESE SYSTEMS HEAD CONTACT WITH THE INSIDE OF THE VEHICLE CAN BE LARGELY AVOIDED, THE ARRANGEMENT OF THE INERTIA REEL IN THE BELT HAVING CONSIDERABLE EFFECT. DESIGN OF THE SEATS ALSO HAS AN EFFECT ON POSSIBLE INJURY. THE TESTS ARE COMPLETED BUT THE REPORT IS OUTSTANDING.