Takata Seat Belts, Inc.

Chris D Hall

Mark Francis Gray

Robert F Rogers

Ahad M Zadeh

A low cost pretensioner is provided by using an ignitable charge and initiator integrated with a piston which is disposed in a cylindrical metal tube that has a common straight gas generation and piston travel bore so that a inexpensive metal tube rather than a complex casting can be used. A cable is connected at one end to the piston and passes through a cable deflection device having a locking device for locking the cable against travel in a reverse direction after tightening the seat belt system. The locking device may be an inexpensive, one-piece wedge-shaped clamping or gripping device which transfers the high tensile forces from the passenger's body pulling on the cable through the deflection device to a vehicle anchorage rather than through a locking device which is disposed within the cylinder tube which must have tube walls sufficiently strong to withstand such high tensile forces.

Pretensioner with integrated gas generator

A seat belt system, in one form, includes a buckle anchored along the side of the seat, a tongue slidably mounted on the seat belt for being latched in the buckle to define the shoulder and lap belt portions, and a retractor for pay in and pay out of the seat belt into and out from the retractor. The airbag is fixed to the tongue and configured for sliding along the seat belt so that with the tongue latched in the buckle the airbag extends along the same position irrespective of the size of the occupant. Alternatively, the airbag is fixed to a guide loop adjacent to the shoulder of the occupant and configured to allow for sliding of the seat belt relative thereto so that with the tongue latched in the buckle the airbag extends from the same position and across the occupant's torso irrespective of the size of the occupant.

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Clay Township, MI, United States of America

Chris D Hall