Gas bag passenger restraint module

• US 5,839,751 A
• Filed: 08/02/1996
• Issued: 11/24/1998
• Est. Priority Date: 08/04/1995
• Status: Expired due to Fees

• Current Assignee: TRW Occupant Restraint Systems GmbH
• Original Assignee: TRW Occupant Restraint Systems GmbH
• Inventors: Lutz, Joachim
• Primary Examiner(s): Culbreth, Eric D.
• Application Number:
  US08/692,874
• Time in Patent Office: 844 Days
• Field of Search: 280/728.2, 280/728.1, 280/732, 280/743.1
• US Class Current: 280/728.2
• CPC Class Codes: B60R 2021/2177 Reaction canisters characterised by material
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• 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

Abstract

A gas bag restraining module having a housing (10), an inflation device (12) located in the latter, said inflation device providing a volume of pressurized gas after activation, and having a folded gas bag (50), which has an attachment section fixed to the housing (10) and surrounding an inflation aperture, should be adapted to the use of an inflation device, which is known in the form of a "heated gas inflator". For this purpose, the invention provides that the inflation device has a cylindrical pressurized gas container (12), the housing (10) is formed with a trough-shaped base to accommodate the pressurized gas container (12) and a box-shaped upper section, the attachment section of the gas bag (50) is provided with an attachment frame (40) and the attachment frame (40) is inserted in the upper section of the housing (10).

Claims

1. A gas bag passenger restraint module having a housing, an inflation device located in said housing, said inflation device providing a volume of pressurized gas upon actuation, and a folded gas bag with an attachment section fixed to said housing and defining and inflation aperture, wherein;

said inflation device has a cylinder-shaped pressurized gas container;

said housing has a trough-shaped base to accommodate the pressurized gas container and a box-shaped upper section;

said attachment section of the gas bag being provided with an attachment frame;

said attachment frame being inserted in said box-shaped upper section of the housing; and

an accommodation for a neck part of said pressurized gas container being provided in the housing and providing a support with a strap which is connected by self-tapping screws to support studs formed on the housing.

2. The gas bag restraint module according to claim 1, wherein said attachment frame has a retaining section shaped to fit along a base part of said pressurized gas container on a side opposite said housing.

3. The gas bag restraint module according to claim 2, wherein a first end of said housing opposite a second end facing the base part of the pressurized gas container has an opening into which a projection on the pressurized gas container engages.

4. The gas bag restraint module according to claim 1, wherein said housing has a rib which is in contact with a base part of said pressurized gas container and a web that is in contact with a wall portion of said pressurized gas container adjacent to said base part.

5. The gas bag restraint module according to claim 1, wherein said housing and said attachment frame each consist of a one piece cast material.

6. A gas bag passenger restraint module having a housing, an inflation device located in said housing, said inflation device providing a volume of pressurized gas upon actuation, and a folded gas bag with an attachment section fixed to said housing and defining an inflation aperture, wherein:

said inflation device has a cylinder-shaped pressurized gas container;

said housing has a trough-shaped base to accommodate the pressurized gas container and a box-shaped upper section;

said attachment section of the gas bag being provided with an attachment frame; and

said attachment frame being inserted in said box-shaped upper section of the housing, and having attachment sleeves which traverse openings formed in the attachment section of the gas bag and into which self-tapping screws engage, locating the attachment frame on the housing.

7. The gas bag restraint module according to claim 6, wherein said gas bag has an essentially rectangular fixing part with a long side which is fixedly connected to the gas bag close to the attachment section thereof, another long side of said fixing part being located on the attachment frame by means of tongues, said tongues having openings, into which said attachment sleeves engage, and having a middle section which is located between said long sides and over the folded gas bag and has a perforation which is torn open by the gas bag upon unfolding thereof.

8. The gas bag restraint module according to claim 6 further including means for interconnecting said housing and said pressurized gas container as a preassembled unit and means for connecting said gas bag and said attachment frame to said preassembled unit.

9. The gas bag restraint module according to claim 6 further including means for interconnecting said gas bag and said attachment frame as a preassembled unit and means for connecting said housing and said pressurized gas container to said preassembled unit.