BELT TENSIONER FOR AUTOMOBILE VEHICLES WITH A TRIPLE POINT SEAT BELT.

摘要

THE INVENTION REFERS TO AN AUTOMOBILE BELT TENSIONER WITH A THREE POINT SEAT BELT WITH A CYLINDER AND PISTON UNIT (2) AND A FIXING INSTALLATION (3) FOR A BELT (4). ACCORDING TO THE INVENTION, THE CYLINDER AND PISTON UNIT (2) CONSISTS OF AN EXTERIOR TUBE (5) AND OF AN INTERIOR TUBE (6) CONTAINED WITHIN IT. A PYROTECHNICAL CHARGE (9) IS PLACED IN THE OUTER TUBE (5), WHICH CAN BE LIT IN A COMBUSTION CHAMBER (14) IN THE INNER TUBE (6). A DEVICE OF THIS TYPE HAS ONLY A NEED FOR REDUCED SPACE AND IT CAN INFLUENCE AND ADAPT THE DEVELOPMENT OF PRESSURE IN CASE OF COMBUSTION OF THE PROPELLER LOAD THROUGH THE SIZE AND CONFORMATION OF THE COMBUSTION CHAMBER.