Restraint System Comprising an Adjustable Outlet Cross Section

• US 20090194979A1
• Filed: 06/30/2006
• Published: 08/06/2009
• Est. Priority Date: 07/02/2005
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler AG (Mercedes-Benz Group AG)
• Inventors: Goetz, Christian, Wagner, Alfred, Kramer, Simon, Ruedebusch, Clark, Eberle, Walter, Bacher, Werner, Lanzerath, Martin, Linssen, Manfred, Struck, Matthias
• Application Number:
  US11/994,370
• Publication Number:
  US 20090194979A1
• Time in Patent Office: Days
• US Class Current: 280/728.3
• CPC Class Codes: B60R 2021/2765 comprising means to control the venting
• CPC Class Codes: B60R 21/239 characterised by their venting means
• CPC Class Codes: B60R 21/276 with means to vent the inflation fluid source, e.g. in case of overpressure B60R21/30 takes precedence; venting means on inflatable member walls B60R21/239

Abstract

The invention relates to restraint system for a passenger of a vehicle who sits on a vehicle seat that can be placed in different positions. Said restraint system comprises an interior that is defined by a housing (1) and at least on gas bag, and at least one triggerable outlet (36-38) which is disposed on the housing (1) and can be closed by means of a closing element (3) that is movable from a closed position into an open position such that an internal pressure in the interior can be adjusted in accordance with passenger load-relevant parameters during an accident. In order to creat a restraint system that has a simple design and can be produced at a low cost, the restraint system further comprises an adjustable stop element (24) which limits the opening movement of the closing element (3) and is coupled to the vehicle seat in such a way that the stop element (24) is displaced according to passenger load-relevant parameters in order to adjust the cross section of the outlet that is defined by the closing element (30 located in the closed positions.

Claims

1-11. -11. (canceled)

12. A restraint system for a passenger of a vehicle who is seated on a vehicle seat that may be placed in different positions, comprising:

an interior, defined by a housing and at least one airbag,

at least one gas generator for delivering gas to the interior in order to inflate the airbag,

at least one controllable outlet, permitting discharge of gas from the interior, provided on the housing,

a closing element, movable from a closed position into an open position, by which the controllable outlet may be closed such that an internal pressure in the interior is adjustable according to parameters relevant to passenger load during an accident, and

an adjustable stop element limiting opening movement of the closing element,

wherein the stop element is coupled to the vehicle seat such that the stop element is displaced according to the position of the vehicle seat in order to adjust the outlet cross section defined by the closing element located in its closed position.

13. The restraint system as claimed in claim 12, wherein the closing element is formed by a slide.

14. The restraint system as claimed in claim 12, wherein the stop element is coupled to the vehicle seat by a Bowden cable.

15. The restraint system as claimed in claim 12, wherein the stop element is coupled to the vehicle seat by interposition of a gear mechanism.

16. The restraint system as claimed in claim 12, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is associated with the vehicle seat position in a linear manner.

17. The restraint system as claimed in claim 12, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is associated with the vehicle seat position in a non-linear manner.

18. The restraint system as claimed in claim 12, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is associated with the vehicle seat position in a restricted linear manner.

19. The restraint system as claimed in claim 12, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is opened in stages depending on the vehicle seat position and parameters relevant to passenger load.

20. The restraint system as claimed in claim 12, wherein a second stop element defining the opening movement of the closing element cooperates with a seatbelt buckle switch to adjust the outlet cross section, which is defined by the closing element located in its closed position.

21. The restraint system as claimed in claim 20, wherein the second stop element comprises a magnet.

22. The restraint system as claimed in claim 12, wherein the closing element is moved from its closed position into its open position, by a pyrotechnic device, when the restraint system is activated.

23. The restraint system as claimed in claim 14, wherein the Bowden cable is a control cable.

24. The restraint system as claimed in claim 15, wherein the gear mechanism defines step-down gearing.

25. The restraint system as claimed in claim 13, wherein the stop element is coupled to the vehicle seat by a Bowden cable.

26. The restraint system as claimed in claim 25, wherein the Bowden cable is a control cable.

27. The restraint system as claimed in claim 13, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is associated with the vehicle seat position in a linear manner.

28. The restraint system as claimed in claim 13, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is associated with the vehicle seat position in a non-linear manner.

29. The restraint system as claimed in claim 13, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is associated with the vehicle seat position in a restricted linear manner.

30. The restraint system as claimed in claim 13, wherein the stop element is coupled to the vehicle seat such that the outlet cross section is opened in stages depending on the vehicle seat position and parameters relevant to passenger load.

31. The restraint system as claimed in claim 13, wherein a second stop element defining the opening movement of the closing element cooperates with a seatbelt buckle switch to adjust the outlet cross section, which is defined by the closing element located in its closed position.