Patent ID: 8469395
Filing Date: 2013-06-25
Classification: B60R

Abstract:
1. A side airbag device for a vehicle seat of the type having a backrest extending in a transverse direction of the vehicle, the backrest having at least one lateral region and an upper region, and a headrest extending from the upper region, the side airbag device being configured to be arranged in the backrest and comprising: an inflator and a side airbag having a thorax section enclosing a thorax chamber in fluid communication with the inflator, and a head section separate from the thorax section and enclosing a head chamber, the thorax section and the head section each being configured to be arranged in or on the backrest and each having an inner wall that forms an impact surface, and an outer wall, the head section configured to emerge from the upper region of the backrest beside the headrest upon actuation of the inflator, the inner wall of the head section configured to be offset in a transverse direction of the vehicle relative to the inner wall of the thorax section upon complete expansion of the airbag, the inner wall of the thorax section and the outer wall of the head section each having an overflow opening, the overflow openings being in fluid communication via a filling section of the side airbag and configured to allow a gas overflow from the thorax chamber into the head chamber.