Receptacle arrangement for an air bag

• US 5,135,255 A
• Filed: 04/04/1991
• Issued: 08/04/1992
• Est. Priority Date: 04/04/1990
• Status: Expired due to Term

• Current Assignee: DaimlerChrysler AG (Mercedes-Benz Group AG)
• Original Assignee: Mercedes-Benz AG (Mercedes-Benz Group AG)
• Inventors: Muller, Manfred, Wetzel, Guido, Brambilla, Luigi, Katz, Egon, Henseler, Wolfgang
• Primary Examiner(s): Olszewski, Robert P.
• Assistant Examiner(s): NOLAND, KENNETH W
• Application Number:
  US07/680,571
• Time in Patent Office: 488 Days
• Field of Search: 280/730, 280/731, 280/743, 280/732, 280/733, 220/266
• US Class Current: 280/730.1
• CPC Class Codes: B60R 2021/161 characterised by additional means for controlling deployment trajectory
• CPC Class Codes: B60R 21/21656 Steering wheel covers or similar cup-shaped covers

Abstract

A receptacle arrangement for an air bag which protects a vehicle occupant from an impact onto parts of the vehicle interior, has a covering which is fixed to a base plate and covers an air bag container. The covering folds out along a hinge axis of a hinge in the edge region of the air bag container during the unfolding of the air bag, after which it exposes a container aperture for the passage of the bag fabric into an inflated position in front of the vehicle occupant. The covering has, in addition to the first hinge, two further hinges which bound the first hinge on both sides, are approximately perpendicular thereto and have a clearance from the lateral edges of the covering. Thereby, two lateral covering flaps are formed which subdivide the swivellable covering.

Claims

1. A receptacle arrangement for an air bag adapted to protect a vehicle occupant from an impact onto interior parts of the vehicle, comprising a rectangular covering fixed to the base plate, the long rectangular sides of the covering being aligned in a transverse direction of the vehicle in straight-ahead travel and which covers an air bag container and folds out along a transverse hinge axis of a hinge in a lower edge region of the air bag container during unfolding of the air bag, after which it completely exposes a container aperture above said edge region for the passage of the bag fabric into an inflated position in front of the vehicle occupant, wherein the covering is swivellable and has, in addition to the first bottom transverse hinge, two additional hinges which laterally bound said first hinge, are approximately perpendicular thereto and have a clearance from the lateral edges of the covering, by which two lateral covering flaps are formed which subdivide the swivellable covering.

2. The receptacle arrangement according to claim 1, wherein firstly the lateral covering flaps and subsequently the entire covering can be swivelled back from the container aperture about the bottom transverse hinge due to a loading of the inside of the covering by the unfolding air bag

3. The receptacle arrangement according to claim 2, wherein a higher resistance to folding out is provided by the first hinge of the covering than by the two additional hinges of the covering flaps.

4. The receptacle arrangement according to claim 1, wherein at least one of the hinges is formed by linear notchings in a profile of the covering.

5. The receptacle arrangement according to claim 4, wherein firstly the lateral covering flaps and subsequently the entire covering can be swivelled back from the container aperture about the bottom transverse hinge due to a loading of the inside of the covering by the unfolding air bag.

6. The receptacle arrangement according to claim 5, wherein a higher resistance to folding out is provided by the first hinge of the covering than by the two additional hinges of the covering flaps.

7. The receptacle arrangement according to claim 1, wherein at least one of the hinges is strengthened by insert strips attached to the inside of the covering.

8. The receptacle arrangement according to claim 7, wherein firstly the lateral covering flaps and subsequently the entire covering can be swivelled back from the container aperture about the bottom transverse hinge due to a loading of the inside of the covering by the unfolding air bag.

9. The receptacle arrangement according to claim 8, wherein a higher resistance to folding out is provided by the first hinge of the covering than by the two additional hinges (11) of the covering flaps.

10. The receptacle arrangement according to claim 7, wherein at least one of the hinges is formed by linear notchings in a profile of the covering.

11. The receptacle arrangement according to claim 7, wherein the insert strip is configured to influence the opening speed of an associated flap.

12. The receptacle arrangement according to claim 11, wherein firstly the lateral covering flaps and subsequently the entire covering can be swivelled back from the container aperture about the bottom transverse hinge due to a loading of the inside of the covering by the unfolding air bag.

13. The receptacle arrangement according to claim 12, wherein a higher resistance to folding out is provided by the first hinge of the covering than by the two additional hinges of the covering flaps.

14. The receptacle arrangement according to claim 11, wherein at least one of the hinges is formed by linear notchings in a profile of the covering.

15. The receptacle arrangement according to claim 1, wherein the air bag container is arranged in a steering wheel in such that the covering, in the folded-back opened position, lies within a steering wheel rim.

16. The receptacle arrangement according to claim 15, wherein firstly the lateral covering flaps and subsequently the entire covering can be swivelled back from the container aperture about the bottom transverse hinge due to a loading of the inside of the covering by the unfolding air bag.

17. The receptacle arrangement according to claim 16, wherein a higher resistance to folding out is provided by the first hinge of the covering than by the two additional hinges of the covering flaps.

18. The receptacle arrangement according to claim 15 wherein at least one of the hinges is formed by linear notchings in a profile of the covering.

19. The receptacle arrangement according to claim 15, wherein at least one of the hinges is strengthened by insert strips attached to the inside of the covering.

20. The receptacle arrangement according to claim 19, wherein the insert strip is configured to influence the opening speed of an associated flap.