Patent ID: 7364194
Filing Date: 2008-04-29
Classification: B60R

Abstract:
1. An inflator for supplying inflation gas to an airbag of airbag device for automobile which is used in an inserted state in the airbag, the inflator comprising: a substantially cylindrical body for generating inflation gas; and a substantially tubular retainer made of sheet metal for being mounted around the body, the retainer including a mounting member for mounting the airbag to a predetermined mounting position and an element for holding the body, the element for holding the body consisting of: a fastening portion located in a vicinity of one end of the retainer for fastening on the body to deform plastically and protrude inward after the body of the inflator is inserted into the retainer which has been set inside the airbag in advance of the body; a first support portion projecting inward from an inner circumference of the retainer; and a second support portion projecting inward from the inner circumference of the retainer, wherein the fastening portion, the first support portion and the second support portion are arranged in order along axial direction of the body to abut against a circumference of the body, whereby the retainer holds the body at least at three axial positions by the fastening portion, the first support portion and the second support portion, and the fastening portion and the second support portion are located in a top portion on an outer circumference of the body and the first support portion is located in a bottom portion on an outer circumference of the body based on a center of a cross section of the body taken perpendicularly to the axial direction of the body as the retainer holds the body, wherein the top portion is substantially opposite to the bottom portion.