Gas bag module

• US 6,447,005 B2
• Filed: 05/02/2001
• Issued: 09/10/2002
• Est. Priority Date: 05/03/2000
• Status: Expired due to Fees

• Current Assignee: TRW Occupant Restraint Systems GmbH & Co. KG
• Original Assignee: TRW Occupant Restraint Systems GmbH & Co. KG
• Inventors: Saelzle, Geunther, Alb, Manfred, Anders, Marcus
• Primary Examiner(s): Dickson, Paul N.
• Assistant Examiner(s): TO, TOAN C
• Application Number:
  US09/847,710
• Publication Number:
  US 20020005634A1
• Time in Patent Office: 496 Days
• Field of Search: 280/728.2, 280/728.3, 280/730.2
• US Class Current: 280/730.2
• CPC Class Codes: B60R 21/20 Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
• 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

Abstract

A gas bag module comprises a gas bag, a first ejection channel, in which part of the gas bag is located, and a flexible cover surrounding the gas bag in areas which are not located within the ejection channel. The cover is provided with a tearing line which allows the gas bag to emerge from the cover.

Claims

1. A gas bag module comprising:

an inflatable gas bag;

a gas lance for inflating said inflatable gas bag;

a first ejection channel and a second ejection channel for receiving said inflatable gas bag and for guiding said gas bag in a predetermined direction upon inflation;

said second ejection channel being spaced apart from said first ejection channel by a space,

said gas bag having a section located in each of said first and said second ejection channels and in said space;

each of said first and second ejection channels comprising a tubular hollow structure with an outlet opening through which said gas bag emerges upon inflation;

a flexible cover engaging and surrounding said gas bag only in said space to protect said gas bag not located in either of said first and second ejection channels, said cover including a tearing line, said tearing line tearing when said gas bag inflates to allow said gas bag to emerge from said cover.

2. The gas bag module of claim 1, wherein said cover is made of Tyvek.

3. The gas bag module of claim 1, wherein said cover is made of a plastic film.

4. The gas bag module of claim 1, wherein said cover is made of a fabric.

5. The gas bag of claim 1, wherein said tearing line is formed by a perforated line.

6. The gas bag module of claim 1, wherein warning statements are printed onto said cover.

7. A gas bag module comprising a gas bag, a first ejection channel, in which part of said gas bag is located, and a flexible cover surrounding said gas bag in areas which are not located within said ejection channel, said cover being provided with a tearing line which allows said gas bag to emerge from said cover, said ejection channel including an attachment means for said cover.

8. The gas bag module of claim 7, wherein said attachment means is a projection and said cover is provided with an opening through which said projection protrudes.

9. A gas bag module comprising a gas bag, a first ejection channel, in which part of said gas bag is located, and a flexible cover surrounding said gas bag in areas which are not located within said ejection channel, said cover being provided with a tearing line which allows said gas bag to emerge from said cover, said tearing line being formed by a perforated line, wherin said cover is glued to said ejection channel.