| 摘要 |
A retightener for safety-belt automatic wind-up devices having an energy converter having a charge, which when activated in the case of danger, the explosive pressure of the fired charge acts on a retightening element which tightens the safety-belt around the body of the motor vehicle passenger. The retightener of the invention has an intermediate liquid medium transmitting the explosive pressure of the charge arranged between the charge and the retightening element.
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