Clamping arrangement for securing an airbag to an inflator

• US 10,196,027 B2
• Filed: 12/17/2015
• Issued: 02/05/2019
• Est. Priority Date: 12/17/2015
• Status: Active Grant

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Gammill, Kurt
• Primary Examiner(s): Ilan, Ruth
• Application Number:
  US14/972,554
• Publication Number:
  US 20170174165A1
• Time in Patent Office: 1,146 Days
• Field of Search: 248 741- 743
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence
• CPC Class Codes: B60R 21/262 Elongated tubular diffusers, e.g. curtain-type

Abstract

A clamping arrangement for an inflatable restraint of a motor vehicle includes a base member and a retention member. The base member has a partially cylindrical shape. The partially cylindrical shape extends circumferentially through no more than 180°. The retention member cooperates with the base member to define a circular opening.

Claims

1. An inflatable restraint for a motor vehicle comprising:

an airbag defining an inflatable cavity having a cylindrical portion in fluid communication with the inflatable cavity;

an inflator for delivering a gas to the inflatable cavity, the inflator including a tubular portion inserted into the cylindrical portion of the airbag;

a base member having a partially cylindrical shape extending circumferentially through no more than 180°

; and

a retention member including first and second ends secured to an outer surface of the base member, the retention member cooperating with the base member for securing an airbag of the inflatable restraint to an inflator,

wherein the base member is unitarily formed to include a first portion for receiving the first end of the retention member and a second portion for receiving the second end of the retention member.

2. The inflatable restraint for a motor vehicle of claim 1, wherein the retention member includes an inner concavely curved surface and an outer concavely curved surface.

3. The inflatable restraint for a motor vehicle of claim 1, wherein the partially cylindrical shape extends through an approximate range of 90°

to 180°

.

4. The inflatable restraint for a motor vehicle of claim 1, wherein the partially cylindrical shape extends through approximately 180°

.

5. The inflatable restraint for a motor vehicle of claim 1, wherein the first and second portions of the base member are circumferentially spaced apart such that the first and second ends are spaced apart.

6. The inflatable restraint for a motor vehicle of claim 1, wherein the partially cylindrical shape has a radius of curvature and an axially extending length, the axially extending length being greater than the radius of curvature.

7. The inflatable restraint for a motor vehicle of claim 6, wherein the axially extending length is greater than a circumferentially extending dimension of the base member.

8. The inflatable restraint of claim 1, wherein at least one of the first and second portions clamps the respective one of the first and second ends.

9. The inflatable restraint of claim 1, wherein the first portion is inelastically movable from a first position to a second position to secure the retention member.

10. An arrangement for securing an airbag to an inflator and mounting the airbag and inflator to a motor vehicle, the arrangement comprising:

a mounting bracket adapted for attachment to the motor vehicle, the mounting bracket having a partially cylindrical shape extending through no more than 180°

; and

a retention member including first and second ends secured to the mounting bracket, the retention member and the mounting bracket cooperating to define a circular opening for receiving the airbag and the inflator,

wherein the mounting bracket is formed to define at least one pair of crimp ears, the at least one pair of crimp ears clamping at least one of the first and second ends of the retention member to the mounting bracket.

11. The arrangement for securing an airbag to an inflator of claim 10, wherein the partially cylindrical shape extends through an approximate range of 90°

to 180°

.

12. The arrangement for securing an airbag to an inflator of claim 10, wherein the partially cylindrical shape extends through approximately 180°

.

13. The arrangement for securing an airbag to an inflator of claim 10, wherein the retention member is a wire or cable clamp hoop.

14. The arrangement for securing an airbag to an inflator of claim 10, wherein the partially cylindrical shape of the mounting bracket has an axially extending length greater than a radius of curvature.

15. The arrangement for securing an airbag to an inflator of claim 10, in combination with an airbag and an inflator, wherein a portion of the airbag and a portion of the inflator extends through the circular opening cooperatively defined by the retention member and the mounting bracket.

16. An inflatable restraint for a motor vehicle comprising:

an airbag defining an inflatable cavity having a cylindrical portion in fluid communication with the inflatable cavity;

an inflator for delivering a gas to the inflatable cavity, the inflator including a tubular portion inserted into the cylindrical portion of the airbag; and

a combined clamping and mounting arrangement for securing the airbag to the inflator and connecting the inflatable restraint to the motor vehicle, the arrangement including a base member and a retention member, the base member disposed adjacent the cylindrical portion of the airbag and partially circumferentially surrounds the cylindrical portion of the airbag and the tubular portion of the inflator, the retention member including first and second ends secured to the base member,

wherein the base member includes a first portion for receiving the first end of the retention member and a second portion for receiving the second end of the retention member.

17. The inflatable restraint of claim 16, wherein the first and second portions of the base member are circumferentially spaced apart such that the first and second ends are spaced apart.

18. The inflatable restraint of claim 16, wherein the base member has a partially cylindrical shape that extends through no more than 180°

.

19. The inflatable restraint of claim 18, wherein the partially cylindrical shape extends through an approximate range of 90°

to 180°

.

20. The inflatable restraint of claim 18, wherein the partially cylindrical shape extends through approximately 180°

.

21. The inflatable restraint of claim 18, wherein the partially cylindrical shape has a radius of curvature extending length, the axially extending length being greater than the radius of curvature.

22. The inflatable restraint of claim 16, wherein at least one of the first and second portions clamps the respective one of the first and second ends.

23. The inflatable restraint of claim 16, wherein the first portion is inelastically movable from a first position to a second position to secure the retention member.

24. An inflatable restraint for a motor vehicle comprising:

an airbag defining an inflatable cavity having a cylindrical portion in fluid communication with the inflatable cavity;

an inflator for delivering a gas to the inflatable cavity, the inflator including a tubular portion inserted into the cylindrical portion of the airbag;

a base member having a partially cylindrical shape extending circumferentially through no more than 180°

; and

a retention member including first and second ends secured to an outer surface of the base member, the retention member cooperating with the base member for securing an airbag of the inflatable restraint to an inflator, the base member is unitarily formed to include a first portion for receiving the first end of the retention member and a second portion for receiving a second end of the retention member, the first portion inelastically movable from a first orientation to a second orientation to secure the retention member.