Seat Belt Retractor: Description and Operation

SEAT BELT RETRACTOR WITH FORCE LIMITER
The driver's/front passenger's seat belt retractor has been equipped with a force limiter. The force limiter is a device which operates when a predetermined force is applied, and limits the force.




OPERATION
1. If a collision energy is transmitted to the seat belt, the ELR mechanism will operate to lock the seat belt.
2. Then, if the energy increases to a predetermined value, the torsion bar will be distorted. As the spindle rotates together with the torsion bar, the seat belt webbing is pulled out, reducing a impact against the occupants.