Side air bag module

• US 7,658,400 B2
• Filed: 10/08/2007
• Issued: 02/09/2010
• Est. Priority Date: 10/11/2006
• Status: Expired due to Fees

• Current Assignee: Key Safety Systems, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Key Safety Systems, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Colburn, Sara A., Ju, Chang Hwan, Wipasuramonton, Pongdet P.
• Primary Examiner(s): CULBRETH, ERIC D
• Application Number:
  US11/868,823
• Publication Number:
  US 20080088118A1
• Time in Patent Office: 855 Days
• Field of Search: 280/728.1, 280/728.2, 280/730.2, 280/743.1, 280/743.2
• US Class Current: 280/728.2
• 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 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence

Abstract

A side air bag module including: an inflator (140), and air bag (102) and a retainer (150), the inflator having inflation ports (145) and a first and a second end (142, 144), the inflator configured to be inserted through a first opening of a first set of openings in an upper portion (104a) of a main panel (105) and configured to exit the upper portion of the main panel through a second opening of the first set of openings, wherein when the inflator is in place in the air bag, the first and second ends of the inflator respectively extend through one of the first and second openings, the main panel (105) also including a lower portion (104b) connectable to the upper portion thereby forming the main panel, a reinforcement panel (130) and the lower portion including similarly shaped, spaced and aligned sets of openings through which the inflator extends; the retainer is situated about the extending ends of the inflator on the exterior of the air bag.

Claims

1. A side air bag module including:

an inflator (140), and air bag (102) and a retainer (150), the inflator having inflation ports (145) and a first and a second end (142, 144), the inflator configured to be inserted through a first opening (120) of a first set of openings in an upper portion (104a) of a main panel (105) and configured to exit the upper portion of the main panel through a second opening (122) of the first set of openings, wherein when the inflator is in place in the air bag, the first and second ends of the inflator each respectively extend through one of the first and second openings (120, 122), the main panel (105) also including a lower portion (104b) connectable to the upper portion (104a) thereby forming the main panel (105), the lower portion including a second set of similarly shaped, spaced and aligned first openings (120) and second openings (122) through which the inflator extends, and wherein the module includes a reinforcement panel (130) having a third set of first and second openings (120, 122) of like size and orientation relative to the openings (120, 122) of the upper portion and aligned to those openings in the upper portion of the main panel, the reinforcement panel (130) secured to the upper portion (104a) and formed as an extension of the upper portion of the main panel (105).

2. The module according to claim 1 wherein the reinforcement panel is an integral part of the upper portion and is configured to be folded about a first fold line (106a) to align the third set of inflator receiving openings in the reinforcement panel with the first set of openings in the upper portion of the main panel.

3. The module according to claim 2 wherein the reinforcement panel includes a first part (130) with the third set of openings comprising two inflator receiving openings and a second part (130a) with a fourth set of inflator receiving openings comprising two additional inflator receiving openings, the second part configured to be folded over a second fold line to bring the fourth set of inflator openings into alignment with the third set of openings, wherein the aligned sets of openings in the reinforcement panel are themselves alignable with and are of the same size and spacing as the openings in the upper portion of the main panel.

4. The module according to claim 3 wherein one of the openings (120) into which the inflator is received is configured to have material (127) about the one opening (120) engage with a side of the inflator forming a seal to retard the flow of inflation gas through the one opening.

5. The module according to claim 4 wherein the one opening is formed with a tab (121) bendable to a position along the side (146) of the inflator, the bendable tab forming a part of the seal, the material 127 about an edge of the one opening forming another part of the seal.

6. The module according to claim 5 wherein for each set of openings, one of the openings in each set is the same size as the first opening and is aligned to the first opening, the inflator passing through each opening that is aligned to the first opening, and wherein for each set of openings, another of the openings in the set is the same size as the second opening and is aligned to the second opening, the inflator passing out of the air bag through each opening that is aligned to the second opening.

7. The module according to claim 6 wherein each of the openings that is respectively aligned to the first opening and to the second opening is maintained together and in alignment by at least one seam (132) of stitches.

8. The module according to claim 1 wherein the first opening is formed by a concave shaped slit.

9. The module according to claim 1 wherein the first opening is formed by a pair of intersection slits (123, 125).

10. The module according to claim 1 wherein the retainer (150) has a first and second end (156, 158) and a connecting portion (152a) each of which is located outside of the air bag, the first end of the retainer secured about the first end of the inflator and the second end of the retainer secured about the second end of the inflator.

11. The module according to claim 1 includes a lock washer (170) received over one end of the inflator and upon compression of the lock washer against the retainer the lock washer holds the one end of the inflator in place.

12. A side air bag module including:

an inflator (140), and air bag (102) and a retainer (150), the inflator having inflation ports (145) and a first and a second end (142, 144), the inflator configured to be inserted through a first opening of a first set of openings in an upper portion (104a) of a main panel (105) of the air bag and configured to exit the upper portion of the main panel through a second opening of the first set of openings, wherein when the inflator is in place in the air bag, the first and second ends of the inflator each respectively extend through one of the first or second openings, the main panel further includes a lower portion (104b) connectable to the upper portion thereby forming the main panel, the upper portion including an integrally formed reinforcement panel (130) having a second set of openings (120, 122) of like size and orientation relative to and aligned with those openings in the upper portion of the main panel, through which the inflator extends.

13. The module according to claim 12 wherein the lower portion of the main panel includes a third set of openings aligned to the other sets of openings in the upper portion and in the reinforcement panel.

14. The module according to claim 13 includes a lock washer (170) received over one end of the inflator and upon compression of the lock washer against the retainer the lock washer holds the one end of the inflator in place.

15. A side air bag module (200) comprising:

an inflator (140), and air bag (102) and a retainer (150), the inflator having inflation ports (145) and a first and a second end (142, 144), the air bag (102) inflated by the inflator and including a first set of inflator receiving openings including at least a first and a second inflator receiving opening (120, 122), the inflator configured to be inserted into the air bag through the first inflator receiving opening and configured to exit the air bag through the second inflator receiving opening, wherein when the inflator is in place in the air bag, the first and second ends extend from a corresponding inflator receiving opening, and wherein the inflation ports of the inflator are situated within the air bag;

the air bag (102) comprising a main panel (105) including an upper portion (104a) and a lower portion (104b) connectable to the upper portion, the upper portion including two inflator receiving openings (120, 122), the lower portion made from a material having a coated fabric to control permeability and the upper portion (104a) made from a material having an uncoated fabric, the main panel including the upper portion and lower portion being symmetric about a center line (106);

wherein the retainer (150) has a first and second end (156, 158) and a connecting portion (152a) each of which is located outside of the air bag, the first end of the retainer secured about the first end of the inflator and the second end of the retainer secured about the second end of the inflator.