Patent ID: 9211862
Filing Date: 2015-12-15
Classification: B60R

Abstract:
1. A side airbag apparatus for restraining and protecting an occupant seated in a vehicle seat via an airbag, wherein the vehicle seat includes a seat back and a pair of side supports provided on both sides of the seat back, the side supports each protruding toward the front of a vehicle and having a front end, the apparatus is stored in one side of the seat back, the airbag includes an inflation portion inflated and deployed forward from the side of the vehicle seat by inflation gas supplied from an inflator in response to an impact applied from the side of the vehicle seat, the inflation portion is partitioned, via a sheet-like partition member, into a plurality of sections including at least an upstream inflation portion that receives the inflation gas and a downstream inflation portion that is adjacent to the front side of the upstream inflation portion and receives the inflation gas passing through the upstream inflation portion, the partition member is provided with a pressure regulating valve, the pressure regulating valve includes an opening that communicates the upstream inflation portion to the downstream inflation portion and a pair of valve body portions for selectively opening and closing the opening, the valve body portions of the pressure regulating valve are pressed by the inflation gas in the upstream inflation portion and contact each other during inflation of the upstream inflation portion and before restraint of the occupant, so as to close the opening, and the valve body portions of the pressure regulating valve are separated from each other across the partition member bent by the external force generated from the restraint when the upstream inflation portion is inflated and the occupant is restrained by the airbag to thereby open the opening to allow the inflation gas to flow from the upstream inflation portion to the down inflation portion, and the opening is provided so as to be located in a region between the point away from a front end of the side support in the vehicle seat forward by 85 mm and the point away from the front end rearward by 15 mm, in the state where the upstream inflation portion is inflated and deployed.