Patent ID: 7708311
Filing Date: 2010-05-04
Classification: B60R

Abstract:
1. An airbag for front passenger seat mountable on a vehicle, wherein the airbag is folded and housed in a top face of an instrument panel in front of a front passenger seat, and upon inflow of inflation gas, the airbag protrudes upward and deploys rearward of the vehicle in to occupy a space between the top face of an instrument panel and a windshield located above the instrument panel, and wherein the airbag, when completely inflated, is formed into a generally square conical shape whose top is located in a front end, the airbag comprising: a left side wall and a right side wall each arranged generally along front-rear orientation in left and right sides, an upper side wall and a lower side wall each arranged generally along left-right orientation in upper and lower sides, and a rear side wall arranged generally along left-right orientation to confront a passenger, in such a manner as to connect the upper side wall and the lower side wall; an inlet port for introducing inflation gas, in the front end vicinity of the airbag as completely inflated; and a protection portion contactable with a front seat passenger, in a rear side of the airbag as completely inflated, the protection portion including at a center in a transverse direction a recess that recesses forward at least above a vertical center of the airbag as fully inflated, wherein the recess is configured such that, in a sectional view taken along front-rear direction at a center in a transverse direction of the airbag as fully inflated, a tangent line of a region of a rear plane of the recess having a small curvature is slanted so that an upper end thereof is located forward and a lower end thereof located rearward.