Patent ID: 9555763
Date: 2017-01-31
CPC Classifications: B60R

Claim:
1. An airbag module for installation into a motor vehicle having an airbag comprising an airbag fabric, an inflation device for inflation of the airbag in a folded state for deployment, wherein the airbag has a ventilation area closed by a foldable three-dimensional element before the inflation of the airbag, and wherein a restraining strap is provided with a first end that is detachably mounted in the interior of the airbag module or on a vehicle-fixed part, and with a second end affixed to the foldable three-dimensional element, such that during the inflation of the airbag, before the release of the detachably mounted first end of the restraining strap, the restraining strap holds the foldable three-dimensional element in a position closing the ventilation area, the foldable three-dimensional element is firmly connected to the airbag fabric via at least a first partial area of its perimeter and which can be folded around the first partial area such that, on release of the restraining strap, the foldable three-dimensional element deflected due to the effect of the gas flowing from the ventilation area and moves to a position opening the ventilation area of the airbag, wherein a second partial area of the perimeter of the foldable three-dimensional element not connected to the airbag is held in the position closing the ventilation area in a detachable overlap with a part of the airbag and the restraining strap running in the interior of the airbag and affixed to the foldable three-dimensional element, wherein the foldable three-dimensional element is configured as a tetrahedron having a triangular base area with triangular sides extending from a perimeter of the triangular base area to define a substantially pyramid-shape while the ventilation area of the airbag is closed by the foldable three-dimensional element.