Tightening unit for safety belt system, has metal tensioning tube and gas generator inserted in open pipe end and fixed with tensioning tube by connection, and gas generator has igniter carrier

摘要

The tightening unit has a metal tensioning tube and a gas generator inserted in an open pipe end and fixed with the tensioning tube (10) by a connection. The gas generator has an ignition carrier (14) that has an ignition fixed on the tensioning tube and a fuel tank. The force, activated by the connection with the ignition carrier, is exerted on the tensioning tube in the ignition carrier and an electrical conduction is built between the metallic tensioning tube and teeth (12) that build the ignition carrier.