Inflatable curtain positioning system and method

• US 20030132615A1
• Filed: 01/14/2002
• Published: 07/17/2003
• Est. Priority Date: 01/14/2002
• Status: Active Grant

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Henderson, David
• Granted Patent: US 6,783,148 B2
• Time in Patent Office: Days
• US Class Current: 280/728.3
• CPC Class Codes: B60R 21/217 Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10

Abstract

An inflatable curtain positioning system may include an inflator and an inflatable curtain. The inflator may have a neck for receiving the inflatable curtain. A protrusion, such as a hook or tab, may be disposed on the neck. The inflatable curtain may include a throat to be disposed around the neck of the inflator. An opening may be disposed within the throat. In one configuration, the opening may be positioned to receive the protrusion only when the curtain is situated at a desired location relative to the housing.

Claims

1. An inflatable curtain positioning system, comprising:

a curtain inflator for generating inflator gas;

a protrusion disposed on the inflator; and

an inflatable curtain configured to be disposed around at least a portion the inflator and an opening disposed on the curtain, the opening being configured to receive the protrusion only when the curtain is positioned at a desired location relative to the inflator.

2. The inflatable curtain positioning system as defined in claim 1, wherein the inflator further comprises a longitudinal axis, and wherein the opening receives the protrusion only when the curtain is positioned at the desired location along the longitudinal axis of the inflator.

3. The inflatable curtain positioning system as defined in claim 1, wherein the curtain further comprises an angle of deployment, and wherein the opening receives the protrusion only when the angle of deployment of the curtain is at the desired location relative to the inflator.

4. An inflatable curtain positioning system, comprising:

a curtain inflator for generating inflator gas, the inflator comprising a housing having a neck;

a protrusion disposed on the neck; and

an inflatable curtain having a throat configured to be disposed around the neck and an opening disposed on the throat, the opening being configured to receive the protrusion only when the curtain is positioned at a desired location relative to the housing.

5. The inflatable curtain positioning system as defined in claim 4, wherein the housing further comprises a longitudinal axis, and wherein the opening receives the protrusion only when the curtain is positioned at the desired location along the longitudinal axis of the housing.

6. The inflatable curtain positioning system as defined in claim 4, wherein the curtain further comprises an angle of deployment, and wherein the opening receives the protrusion only when the angle of deployment of the curtain is at the desired location relative to the housing.

7. The inflatable curtain positioning system as defined in claim 4, wherein the protrusion is a tab.

8. The inflatable curtain positioning system as defined in claim 4, wherein the protrusion is a hook.

9. The inflatable curtain positioning system as defined in claim 8, wherein the housing comprises a proximal end and a distal end, the proximal end being closer to the neck than the distal end, and wherein the hook curves toward the distal end.

10. The inflatable curtain positioning system as defined in claim 4, further comprising:

at least one additional protrusion disposed on the neck; and

at least one additional mating opening disposed on the throat, the openings being configured such that each of the protrusions is positioned within one of the openings only when the curtain is positioned at a desired location relative to the housing.

11. The inflatable curtain positioning system as defined in claim 10, wherein the protrusions are positioned at irregularly spaced intervals along a perimeter of the housing.

12. The inflatable curtain positioning system as defined in claim 4, further comprising:

a clamp to secure the curtain to the housing when the curtain is positioned at the desired location relative to the housing such that the inflator and curtain are placed in fluid communication.

13. An inflatable curtain positioning system, comprising:

a curtain inflator for generating inflator gas, the inflator comprising a housing having a neck;

at least one protrusion disposed on the neck; and

an inflatable curtain having a throat configured to be disposed around the neck and at least one opening disposed on the throat, each opening being configured such that each protrusion is positioned within an opening only when the curtain is positioned at a desired location relative to the housing.

14. The inflatable curtain positioning system as defined in claim 13, wherein the housing further comprises a longitudinal axis, and wherein the opening receives the protrusion only when the curtain is positioned at the desired location along the longitudinal axis of the housing.

15. The inflatable curtain positioning system as defined in claim 13, wherein the curtain further comprises an angle of deployment, and wherein the opening receives the protrusion only when the angle of deployment of the curtain is at the desired location relative to the housing.

16. The inflatable curtain positioning system as defined in claim 13, wherein at least one protrusion is a tab.

17. The inflatable curtain positioning system as defined in claim 13, wherein at least one protrusion is a hook.

18. The inflatable curtain positioning system as defined in claim 13, wherein the at least one protrusion comprises a plurality of protrusions, the plurality of protrusions being positioned at irregularly spaced intervals along a perimeter of the housing.

19. The inflatable curtain positioning system as defined in claim 13, further comprising:

a clamp to secure the curtain to the housing when the curtain is positioned at the desired location relative to the housing such that the inflator and curtain are placed in fluid communication.

20. An inflatable curtain positioning system, comprising:

a curtain inflator for generating inflator gas, the inflator comprising a housing having a neck;

a hook disposed on the neck; and

an inflatable curtain having a throat configured to be disposed around the neck and an opening disposed on the throat, the opening being configured to receive the hook only when the curtain is positioned at a desired location relative to the housing.

21. The inflatable curtain positioning system as defined in claim 20, further comprising:

at least one additional hook disposed on the neck; and

at least one additional mating opening disposed on the throat, the openings being configured such that each of the hooks is positioned within one of the openings only when the curtain is positioned at the desired location relative to the housing.

22. The inflatable curtain positioning system as defined in claim 21, wherein the hooks are positioned at irregularly spaced intervals along a perimeter of the housing.

23. The inflatable curtain positioning system as defined in claim 21, wherein the housing comprises a proximal end and a distal end, the proximal end being closer to the neck than the distal end, and wherein at least one hook curves toward the distal end.

24. The inflatable curtain positioning system as defined in claim 20, further comprising:

a clamp to secure the curtain to the housing when the curtain is positioned at the desired location relative to the housing such that the inflator and curtain are placed in fluid communication.

25. A method for placing an inflatable airbag curtain at a desired location relative to a inflator, comprising:

providing a curtain inflator for generating inflator gas, the inflator comprising a housing having a neck;

a protrusion disposed on the neck;

an inflatable curtain having a throat configured to be disposed around the neck and an opening disposed on the throat, the opening being configured to receive the protrusion only when the curtain is positioned at a desired location relative to the housing; and

a clamp configured to secure the curtain to the housing when the curtain is positioned at the desired location;

placing the throat around the neck;

positioning the curtain relative to the housing such that the protrusion is disposed within the opening; and

securing the curtain to the housing with the clamp.

26. The method as defined in claim 25, wherein the protrusion is a hook.