Resin air bag
First Claim
Patent Images
1. A resin air bag comprising:
- a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag;
whereineach of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag;
the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed;
further whereinthe sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has an unfolded thickness greater than that of the sheet which is to be positioned farthest away from the occupant only at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag.
1 Assignment
0 Petitions
Accused Products
Abstract
To design an air bag in such a manner that a joint between synthetic resin sheets composing the air bag is directed to an instrument panel when the air bag is deployed, an air bag 1 is formed by joining together a circular front panel 2 and a circular rear panel 3 having an opening 4 through which an inflator is inserted in the center of the rear panel 3. The front and rear panels 2 and 3 are each made of synthetic resin sheet. The thickness of the front panel 2 is greater than that of the rear panel 3 so that a joint 5 is directed to an instrument panel when the air bag is deployed.
11 Citations
7 Claims
-
1. A resin air bag comprising:
-
a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag;
whereineach of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag; the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed;
further whereinthe sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has an unfolded thickness greater than that of the sheet which is to be positioned farthest away from the occupant only at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag. - View Dependent Claims (2, 3, 5)
-
-
4. A resin air bag comprising:
-
a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag;
whereineach of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag; the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed;
further whereinthe sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has a stiffness greater than and a thickness substantially equal to that of the sheet which is to be positioned farthest away from the occupant at least at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag. - View Dependent Claims (6, 7)
-
Specification