Airbag tube with cold-formed charging head and procedure for obtaining the same

摘要

The airbag tube is obtained in accordance with the following operational stages:
-bevelling of one of the extremities of a cylindrical tube,
-reduction of the external diameter of the tube, over a final length (2) of its length,
-a first angular deformation of the final length (2)
-a second angular deformation of the final length (2)
-bending the tip of the final length (2) and
-flattening the tip of the final length (2) for obtaining a plane segment provided with a central orifice (3) for coupling of the charging nozzle.