US Patent 7523957 Headrest airbag

The present invention affords a headrest airbag for reducing or preventing whiplash and/or head injuries related to vehicle collisions. The headrest airbag is comprised of a trim material that encloses a headrest member, a receiving means for receiving an exchangeable gas bag module and an exchangeable gas bag module at least partially inserted into the receiving means. The exchangeable gas bag module is comprised of an inflatable gas bag and a gas generator for inflating the gas bag. The gas bag maintains its location within the receiving means of the headrest airbag whether it is inflated or not. The inflated gas bag reduces the distance that a head of a driver or passenger is thrown in a rearward direction before coming into contact with a headrest, and reduces the force of such an impact.