Patent ID: 8448981
Filing Date: 2013-05-28
Classification: B60R

Abstract:
1. A side airbag device for a vehicle comprising: a side airbag comprising: an upper bag portion that is positioned at a vehicle upper side, and corresponds to a head portion to a shoulder portion of a passenger seated in a vehicle seat; a lower bag portion that is positioned at a vehicle lower side of the upper bag portion, and corresponds to a waist portion of the passenger; and an intermediate portion that is a film-shaped non-inflating portion, and connects a lower edge portion of the upper bag portion and an upper edge portion of the lower bag portion, corresponds to a chest portion of the passenger, wherein: at a time of a side collision, the side airbag receives a supply of gas for inflation and inflates and deploys between the passenger and a vehicle body side portion, the side airbag device for a vehicle is configured such that a load, that is imparted toward a vehicle transverse direction inner side from the upper bag portion to the shoulder portion when the shoulder portion is restrained by the upper bag portion, decreases at a latter stage of restraint of the shoulder portion, a tubular inflated portion is further provided that communicates with a vehicle rear side of the upper bag portion at an end portion at a vehicle upper side, and communicates with a vehicle rear side of the lower bag portion at an end portion at a vehicle lower side, and inflates, before the upper bag portion and the lower bag portion, along a spine direction of the passenger at an initial stage of inflation and deployment of the side airbag, a reinforcing cloth that is tubular and is sewn to the inner surface of the tubular inflated portion, and the lower bag portion that is configured so as to inflate in a tubular shape toward a vehicle front side and downwardly at an incline, from an end portion at the vehicle lower side of the tubular inflated portion.