초록

An arrangement for tightening a belt forming part of a vehicle safety harness assembly when abnormal changes of speed of the vehicle occur such as in the case of a collision involving the vehicle.

대표청구항 ▼

A device for the tightening of a belt forming part of a safety harness assembly of a safety belt for vehicles in case of abnormal changes of speed of the vehicle, as for example during a collision, comprising a safety belt part, a sensor means capable of sensing said abnormal speed changes and givin

A device for the tightening of a belt forming part of a safety harness assembly of a safety belt for vehicles in case of abnormal changes of speed of the vehicle, as for example during a collision, comprising a safety belt part, a sensor means capable of sensing said abnormal speed changes and giving off a gaseous pressure pulse in its activated condition, a power means capable of being driven by said gaseous pressure pulse and in its activated condition capable of giving at least one portion of said belt part a movement in a sidewards direction relative to the normal extension of said belt part thus forming at least one sidewards directed loop, said power means comprises a number of gas charges which can expand and said belt part having inner spaces along the longitudinal direction of said belt to be tightened, said charges being arranged in said belt inner spaces with at least one of the sides of said charges being adjacent said belt in such a way that said belt is deflected sidewise thereby contracting in the pulling direction when any of said charges are activated.