Seat belt system
AssigneeJoyson Safety Systems Acquisition LLC
InventorMark Gray
Life of this patent
Estimating the term…
Abstract
A pretensioner for a seat belt device in a vehicle includes a cable connected to the seat belt device at a first end of the cable. The pretensioner also includes a base frame containing a pipe. A rod is located within the pipe, and one end of the rod is configured to be subjected to pressure from gas provided by a gas generator. A second end of the cable and a second end of the rod are connected to a swage block. The rod is configured to be driven within the pipe in the pretensioning direction by gas from the gas generator when the gas generator initiates in response to an acceleration of the vehicle greater than a predetermined high acceleration thereby causing the swage block to move and pull the cable to thereby cause a corresponding movement of the seat belt device.
Claims20
A seatbelt pretensioner for a seat belt device in a vehicle, the pretensioner comprising:
- a cable connected to the seat belt device at a first end of the cable;
- a base frame containing a pipe, wherein a rod is located within the pipe, and wherein the entire cable is located outside of the pipe and wherein a first end of the rod is configured to be subjected to pressure from gas provided by a gas generator;
- wherein a second end of the cable and a second end of the rod are connected to a swage block;
- wherein the rod is configured to be driven within the pipe in the pretensioning direction by gas from the gas generator when the gas generator initiates in response to an acceleration of the vehicle greater than a predetermined high acceleration thereby causing the swage block to move and pull the cable to thereby cause a corresponding movement of the seat belt device.
A seat belt assembly for a vehicle, the seatbelt assembly comprising:
- a seat belt webbing;
- a cable connected to the seat belt webbing at a first end of the cable;
- a base frame containing a pipe, wherein a rod is located in the pipe, and wherein the entire cable is located outside of the pipe and wherein a first end of the rod is configured to be exposed to pressure from gas provided by a gas generator;
- wherein a second end of the cable and a second end of the rod are connected to a swage block;
- wherein the rod is configured to be driven within the pipe in the pretensioning direction by gas from the gas generator when the gas generator initiates in response to an acceleration of the vehicle greater than a predetermined high acceleration thereby causing the swage block to move and pull the cable to thereby cause a corresponding movement of the seat belt webbing.
A seatbelt pretensioner for a seat belt device in a vehicle, the pretensioner comprising:
- a cable connected to the seat belt device at a first end of the cable;
- a base frame containing a pipe, wherein a rod is located within the pipe, and wherein the entire cable is located outside of the pipe, and
- wherein a first end of the rod is configured to be subjected to pressure from gas provided by a gas generator and a second end of the rod is connected to the second end of the cable;
- wherein the rod is configured to be driven within the pipe in the pretensioning direction by gas from the gas generator when the gas generator initiates in response to an acceleration of the vehicle greater than a predetermined high acceleration thereby causing the rod to move and pull the cable to thereby cause a corresponding movement of the seat belt device
- a wedge located in the base frame and configured to engage the cable and the base frame to prevent the cable from retracting in a retraction direction, wherein the retraction direction is opposite of the pretensioning direction.
Dependencies are inferred from the claim text.