Passenger restraint system

摘要

A passenger restraint system for motor vehicles is equipped with a safety belt, a belt tensioner, an inflatable airbag and with a switch member which detects the functional position of the safety belt and which is arranged in a belt lock of the safety belt. Activation of the airbag and of the belt tensioner takes place in dependence on the functional position of the safety belt. In order to reduce the risk of injury by the safety belt at medium speeds during the operative period of the airbag, an activatable belt-clamping device on the belt lock and an activatable belt pull-out detent for the shoulder belt are provided. In the presence of a second threshold signal indicating a moderate to serious injury, the airbag is released, the belt-clamping device is arrested. Additionally, the belt pull-out detent is released during the operative period of the airbag.