Retainer used for air bag
First Claim
1. A retainer used for an air bag adapted to be attached to an inflator, comprising,a rectangular main panel having a central hole therein and four side edges, said inflator being inserted into the central hole, andfour side walls extending downwardly from the four side edges of the main panel, side portions of the adjacent side walls being connected together, two side walls among the four side walls facing each other having fingers extending further downwardly therefrom, said main panel and four side walls being integrally connected to each other to form a box shape with a bottom opening and formed of thermoplastic synthetic resin-impregnated paper to be light in weight and so that when the air bag is opened, the thermoplastic synthetic resin of the retainer, having a melting temperature lower than the temperature produced by the inflator during inflation, is melted by heat of the inflator upon expansion of the air bag to form a seal between the retainer and the inflator.
1 Assignment
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Accused Products
Abstract
A retainer used for an air bag is formed of synthetic resin-impregnated paper. The retainer is reduced in weight, has a shape adaptibility and can be served at a reduced cost. Further, the attaching operation is easy to improve productivity.
18 Citations
17 Claims
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1. A retainer used for an air bag adapted to be attached to an inflator, comprising,
a rectangular main panel having a central hole therein and four side edges, said inflator being inserted into the central hole, and four side walls extending downwardly from the four side edges of the main panel, side portions of the adjacent side walls being connected together, two side walls among the four side walls facing each other having fingers extending further downwardly therefrom, said main panel and four side walls being integrally connected to each other to form a box shape with a bottom opening and formed of thermoplastic synthetic resin-impregnated paper to be light in weight and so that when the air bag is opened, the thermoplastic synthetic resin of the retainer, having a melting temperature lower than the temperature produced by the inflator during inflation, is melted by heat of the inflator upon expansion of the air bag to form a seal between the retainer and the inflator.
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15. A retainer used for an air bag adapted to be attached to a steering portion and retained in a cover, said retainer holding an inflator therein and a mounting ring thereon, said air bag being disposed above the retainer and inside the cover, comprising,
a rectangular main panel including a central hole therein, said inflator being inserted into the central hole, a plurality of first small holes arranged around the central hole, said first small holes being used for attaching the mounting ring to the main panel, and four side edges, and four side walls extending downwardly from the four side edges of the main panel, said side walls being connected together at side portions thereof and having a plurality of second small holes adapted to receive rivets therein for attaching the cover to the retainer, two side walls among the four side walls facing to each other having fingers extending downwardly therefrom, each finger having a third hole therein adapted to receive a bolt therein for attaching the retainer to the steering portion, said main panel and four side walls being integrally connected together to form a box shape with a bottom opening and formed of thermoplastic synthetic resin-impregnated paper so that when the air bag is opened, the thermoplastic synthetic resin of the retainer, having a melting temperature lower than the temperature produced by the inflator during inflation, is melted by heat of the inflator upon expansion of the air bag to seal between the retainer and the inflater.
Specification