Method for folding a gas bag and the mechanism for implementing the method.

Method for folding a gas bag, in particular a head airbag and window, in which the bag extended gas (1) is moved continuously toward a focusing device (2, 3) is folded and driven continuously outside the focusing device, characterized in that the gas bag (1) in its relative movement towards the focusing device (2, 3) passes through a focusing device conically or funnel structure (2, 3 ) which it is folded in a defined cross section X2.