Precautions for the use of Retractable Seat belt
Retractable seat belt pre-tightening device. When an accident occurs, the person is forward and the seat is backward. At this time, if the retractable seat belt is too loose. The consequence is likely to be: the occupant slips out from under the Retractable Seat belt.
1. Retractable seat belt pre-tightening device. When an accident occurs, the person is forward and the seat is backward. At this time, if the retractable seat belt is too loose. The consequence is likely to be: the occupant slips out from under the Retractable Seat belt: Or, the person has touched the airbag, and at this time the Retractable Seat belt cannot be tightened in time due to the excessive tensioning margin, that is, it fails to be as expected. Part of the impulse is eaten in advance, but all the burden is handed over to the airbag. Both of these situations may cause serious injury to the occupants. But the problem is that the seat belt is properly installed. Where does the room for loosening come from? One is because the clothes of the occupants themselves have a certain thickness, and there is some room for looseness hidden in the Retractable Seat belt device. This room cannot be eliminated, but in the event of an accident, it should be eliminated as much as possible. How to do? For this reason, this kind of seat belt pre-tensioning device appeared, which is responsible for providing an instantaneously tightened Retractable Seat belt.
2. After the accident of the retractable seat belt tension limiter, the retractable seat belt has been tightened under the action of the pre-tightening device. However, we hope that after the peak force has passed, the tension of the seat belt will be immediately reduced to reduce the force on the occupants. This special task is completed by the retractable seat belt tension limiter: on the seat belt device, there is a The aforementioned pre-tensioning device has a safety belt wrapped underneath. Inside the shaft core is a steel torsion bar. When the load reaches a predetermined condition, the torsion bar begins to twist, which loosens the seat belt to a certain extent and realizes the tension limiting function of the Retractable Seat belt.
With the combined action of the retractable seat belt pre-tensioning device and the retractable seat belt tension limiter, the protective capacity of the retractable seat belt has almost reached the ideal state. Seeing the spirit in the subtleties, the advanced Retractable Seat belt can indeed provide occupants with reliable safety protection.
3. When the car encounters emergency braking in an unexpected situation, the Retractable Seat belt can restrain the driver and passengers on the seat to avoid forward collision, thereby protecting the driver and passengers from injury caused by the secondary collision.