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Dual Spool Retractor in Belt-in-Seat

  • US 20090267332A1
  • Filed: 04/29/2008
  • Published: 10/29/2009
  • Est. Priority Date: 04/29/2008
  • Status: Active Grant
First Claim
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1. A motor vehicle occupant restraint system of a type including a seat belt assembly and an air bag, the seat belt assembly having webbing defining a shoulder belt section adapted to extend across the upper torso of an occupant and a lap belt section adapted to extend across the lower torso of the occupant, the restraint system comprising:

  • a first retractor coupled to an end of the shoulder belt section of the seat belt webbing and having a spool for storing the webbing and allowing extension and retraction of the webbing,a seat belt anchorage coupled to an end of the lap belt section of the seat belt webbing for coupling the webbing to structure of the vehicle,a gas source for generating a deployment gas in response to a deployment signal from a firing line,a first pretensioner coupled to the webbing for retracting the webbing for pretensioning the webbing, the first pretensioner actuated by the deployment gas, andthe air bag deployable upon generation of the deployment gas by the gas source wherein the deployment signal from the firing line causes the gas source to provide the deployment gas which actuates the first pretensioner and initiates deployment of the air bag.

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