Patent ID: 7140639

Claim:
An airbag device comprising: an airbag having a tubular gas inlet port; a cylinder-shaped inflator including a discharge side end portion to be inserted into the gas inlet port of the airbag when connected with the airbag; and a clamp whose inner diameter is reduced for connecting the gas inlet port of the airbag with the discharge side end of the inflator, wherein: the discharge side end of the inflator includes: a plurality of gas discharge ports, each of the gas discharge ports including a circumferential opening located in an outer circumference of the discharge side end, and an end face opening continued from the circumferential opening and located in an end face of the discharge side end; supporting planes located between the circumferential openings for supporting an inner surface of the gas inlet port of the airbag, each of the supporting planes extending up to the end face of the discharge side end; and a guide portion for redirecting inflation gas flowing along an axial direction of the inflator to directions perpendicular to the axis of the inflator inside the discharge side end when the gas inlet port of the airbag is not connected with the inflator, such that inflation gas is discharged from the circumferential openings of the gas discharge ports, and the clamp is clamped over the discharge side end sheathed with the gas inlet port, such that the gas inlet port is pressed onto the supporting planes of the discharge side end, whereby, after the airbag is connected with the inflator, the circumferential openings are closed by the gas inlet port of the airbag and inflation gas is discharged from the end face openings in the axial direction of the inflator.