Process for producing of an airbag

摘要

A first air bag part (11) is coated with polyurethane (PU) along a fastening section (13) and then pressed into contact with a second air bag part (12). The PU coating is then heated to permanently join both bag parts together. An INDEPENDENT claim is made for the air bag in which two air bag parts forming parts of the air bag cover are joined along two or more parallel connecting sections. Preferred Features: An air bag cover can be formed from both bag parts and-or the bag parts form a single section of the air bag cover. The first bag part may be a connecting strip joined to a second bag part forms a section of the air bag cover. A PU coating is applied onto another fastening area of the connecting strip and heated and fused onto a connecting section of a third air bag part, which with the second bag part form parts of a single section of the air bag cover. The connecting strip may be a flat band or has a circular or U-shaped cross-section. The PU coating covers the entire inner surface of finished air bag parts. Heating of the PU coating is by radiation, ultrasonic and-or dielectric methods and pressure is simultaneously applied.