Method of folding a bag for an air bag apparatus and an air bag

Details Method of folding a bag for an air bag apparatus and an air bag Method of folding a bag for an air bag apparatus and an air bag

1998-02-17

2000-07-25

Dickson, Paul N.

Land vehicles

Wheeled

Attachment

B60R 2116

Patent

active

060928395

ABSTRACT:
A method of folding a bag for an air bag apparatus which is accommodated in a folded state in an apparatus main body, and is deployed and inflated toward a vehicle occupant as an ejected gas flows into the bag on impact of a predetermined high load to a frontal portion of a vehicle, includes: a first step of planarly laying out the bag including two pieces of base cloth which are respectively cut into circular shapes and whose peripheral portions are secured to each other; a second step of folding toward a center of the bag four peripheral edge portions of the bag laid out planarly in the first step, such that the shape of the bag in a plan view becomes a quadrangular shape; and a third step of folding a plurality of times four corner portions formed by folding the bag in the second step, such that the shape of the bag in a plan view becomes a quadrangular shape which is smaller than the quadrangular shape.

REFERENCES:
patent: 4004828 (1977-01-01), Sogabe et al.
patent: 5482317 (1996-01-01), Nelsen et al.
patent: 5605350 (1997-02-01), Bates et al.
patent: 5690358 (1997-11-01), Marotzke

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