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1. WO1997042061 - COUSSIN GONFLABLE DE SECURITE DOTE D'UN ANCRAGE D'ATTACHE A FIXATION EXTERNE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

1. A vehicle occupant safety device comprising:
an air bag (50) initially in a folded
configuration and when inflated by inflation gas expands to an inflated configuration to protect the occupant;
mflator means (40) for providing inflation gas to inflate the air bag;
external tether means (70) initially about a portion of the exterior of the folded air bag, comprising at least one open sided, breakable band for initially retarding the forward motion of the inflating air bag toward an occupant and for
permitting the inflating air bag to inflate
laterally or sideways while its forward motion is retarded and thereafter after the band is fully opened, to permit the air bag to inflate forwardly without retardation.

2. The device as defined in Claim 1 wherem the external tether means comprises: at least one piece of material having first and second sides (73) formed into a loop portion (90) about the air bag (50) and a frangible portion (91) extending from the loop portion.

3. The device as defined in Claim 2 wherem the frangible portion (91) comprises a first and a second panel (72a, b) joined together, the joined portion being completely separated as the air bag inflates toward the occupant.

4. The device as defined in Claim 3 wherem the external tether means is formed by two joined panels.

5. The device as defined in Claim 3 wherem the external tether means includes a single piece of material.

6. The device as defined in Claim 2 wherem the loop portion (90) has a diameter greater than that of the folded air bag to provided an off-set (81) therebetween to enable the air bag to expand forwardly a small distance from the housing and thereafter to expand laterally out from a housmg.

7. The device as defined m Claim 1 wherem the sides of the tether means include a narrowed portion.

8. The device as defined in Claim 7 wherein the narrowed portion is formed by an arcuate concave section.

9. The device as defined in Claim 7 wherem the narrowed portion is formed by an angled notch.

10. The device as defined in Claim 1 wherem the tether means is generally trapezoidal shaped.

11. The device as defined in Claim 1 wherem the sides of the tether means are convex shaped.

12. The device as defined in Claim 2 wherein the frangible portion includes a plurality of bands (102) .

13. The device as defined m Claim 1 wherem the module includes a cover (63) .

14. The device as defined in Claim 1 wherein the tether means is off-set (81) from the air bag to provide an open sided loop to permit the air bag to expand laterally outwardly.

15. A vehicle occupant safety device comprising:
an air bag module (22) comprising:
external tether means (70) initially about a portion of the exterior of a folded air bag,
comprising at least one open sided, breakable band for initially retarding the forward motion of the inflating air bag toward the occupant and for permitting the inflating air bag to inflate
laterally or sideways while its forward motion is retarded and thereafter after the band is fully opened, to permit the air bag to inflate forwardly without retardation.

16. The device as defined in Claim 15 wherein the air bag (50) is received within a cavity of a housing (24), in a folded configuration and when inflated by inflation gas expands through an open top to an inflated configuration to protect an occupant.

17. The device as defined in Claim 15 wherein the external tether means comprises: at least one piece of material having first and second sides (73) formed into a loop portion (90) about the air bag (50) and a frangible portion (91) extending from the loop portion.

18. The device as defined in Claim 17 wherein the frangible portion (91) comprises a first and a second panel (72a, b) joined together, the joined portion being completely separated as the air bag inflates toward the occupant.

19. The device as defined m Claim 18 wherem the external tether means is formed by two joined panels.

20. The device as defined in Claim 17 wherem the loop portion (90) has a diameter greater than that of the folded air bag to provided an off-set (81) therebetween to enable the air bag to expand
forwardly a small distance from the housing and thereafter to expand laterally out from the housing.