Dual Spool Retractor in Belt-in-Seat
First Claim
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.
1 Assignment
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Accused Products
Abstract
A restraint assembly of a type including a seat belt assembly and a side impact air bag assembly. The seat belt assembly and side impact assembly are preferably mounted to a motor vehicle seat. The seat belt assembly includes one or two retractors, preferably each having roto pretensioners. A single gas source is used to actuate retractor pretensioning functions, as well as providing a gas source for initiating the production of inflation gas for the side impact air bag assembly. Preferably, these elements are all mounted to a motor vehicle seat.
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Citations
20 Claims
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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:
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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, and the 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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:
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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 first retractor for retracting the webbing for pretensioning the webbing, the first pretensioner actuated by the deployment gas, and the 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. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A motor vehicle occupant restraint system of a type including a seat belt assembly and a side impact 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:
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a gas source for proving a deployment gas upon a deployment signal from a firing line, a first retractor coupled to an end of the shoulder belt section of the seat belt webbing and having a first spool for storing the webbing and allowing extension and retraction of the webbing, a first pretensioner coupled to the first retractor spool for retracting the webbing for pretensioning the webbing, the pretensioner actuated by the deployment gas, a second retractor coupled to an end of the lap belt section of the belt webbing and having a second spool, a second pretensioner coupled to the second retractor spool for retracting the webbing for pretensioning the webbing, the second pretensioner actuated by the deployment gas, and a side impact air bag deployable upon initiation by the deployment gas from through the gas source wherein the deployment signal from the firing line causes the gas source to provide the gas source which actuates the first pretensioner and initiates deployment of the air bag. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification