Cover/director for air bag

• US 5,628,527 A
• Filed: 01/25/1996
• Issued: 05/13/1997
• Est. Priority Date: 01/25/1996
• Status: Expired due to Term

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Morton International Incorporated (Autoliv Incorporated)
• Inventors: Olson, Brent K., Storey, J. Kirk
• Primary Examiner(s): Dickson, Paul N.
• Application Number:
  US08/591,054
• Time in Patent Office: 474 Days
• Field of Search: 280/728.1, 280/728.2, 280/730.1, 280/730.2, 280/733, 280/743.1
• US Class Current: 280/730.2
• CPC Class Codes: B60R 2021/161 characterised by additional means for controlling deployment trajectory
• CPC Class Codes: B60R 21/16 Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags protective garments with automatically inflatable shock-absorbing means A41D13/018; connection of valves to inflatable elastic bodies B60C29/00
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 21/2176 the air bag components being completely enclosed in a soft or semi-rigid housing or cover

Abstract

An undeployed air bag and inflator are wrapped in a soft cloth package. At the time the air bag is inflated, a seam in the cloth ruptures and a portion of the package unfolds to form a guide for the deploying air bag. The package also includes means to secure it to a portion of a vehicle such as a seat back.

Claims

1. A soft air bag package mounted in a vehicle seat back comprising:

a folded air bag cushion,

a soft wrapping of cloth or Tyvek paper enclosing said air bag cushion,

and a weakened seam in said wrapping, said wrapping including a cover portion which encloses said air bag cushion and which overlaps a portion of said wrapping and which extends tangentially to said wrapping when said weakened seam opens for deployment of said air bag cushion whereby said cushion is caused to deploy forwardly in a vehicle along an interior surface of said cover portion.

2. The package of claim 1 in which the wrapping is substantially cylindrical and said cover portion includes an overlapping outer portion which overlaps a portion of the cylindrical wrapping.

3. The package of claim 2 in which an extension is secured to a free edge of said overlapping outer portion.

4. A method of deploying an air bag cushion in a forward direction including mounting the package of claim 1 in a seat back with the weakened seam disposed on a portion of the wrapping which faces the front of a vehicle.