1972-02-01

A Passive Safety Belt System 720440

The geometry and behavior of several front-seat passive belt configurations have been studied and evaluated. General design criteria are discussed.The preferred solution is a three-point belt with two ends attached to the door. The belt straps automatically, and for comfortable exit, the occupant may make a slight manual operation.Crash tests indicate that the belt performs approximately as a standard three-point belt. Door strength, retractor strength, strap strength and tension, seat influence, etc., have been tested. Curves are given for recorded and computed data, including old and new severity index.

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