The role of the ideal Seat Belt process: first, timely tightening, the first moment of the accident who did not hesitate to "press" in the seat. Then, appropriate to relax, to be past the peak impact force, or the air bag have to be protected, that is appropriate to relax Seat Belt. Avoid too large to pull people injured ribs. Seat Belt is the most advanced with pre-tensioners and force limiter, let us look at the functions of these two principles.
1, Seat Belt Pre-tighten the device when the accident occurred, the people forward, seat later, at this time if the Seat Belt too loose. The consequence is likely to be: Crew from the Seat Belt Slide out the following: or, who has met the balloon, at which point Seat Belt Tension over as excessive and failed to tighten, that is not as large as hoped in advance to eat part of the momentum away, but will have all the burden to the airbag. Both situations can lead to the crew was seriously injured. But the problem is, the correct installation of Seat Belt. The loosening of room come from? First, as the crew’s clothing has a certain thickness, another device in the Seat Belt is also much room for hiding some of the loose, this room can not eliminate, but the real case of emergency, it should try to eliminate. How do? To this end there is such a Seat Belt Pre-tensioners that provide an instant tightening of the Seat Belt. Its process is: first of all by a probe to collect crash information, and then release the electrical pulse, the pulse delivered to the gas generator, the detonation gas. Gas explosion rapid expansion in the pipe, pressure the ball to the so-called chain, so that the ball forward in the tube channeling, driving the ratchet disk transfer. Pawl plate with uranium as a single entity, Seat Belt around the shaft on. Simply put, that is, the gas pressure to the ball moving, ball transfer disk drive pawl, pawl pivot disk drive – an instant realization of the Seat Belt Pre-tightening function. From the perceived pre-incident to the completion of Seat Belt tightening of the entire process lasted only a few seconds per thousand. Cavity end of the pipe is a length, for accommodating the ball rolling over.
2, Seat Belt Force Limiter after the accident, Seat Belt tightening device in the pre-under, has been tightened. But we hope that after the force peak in the past, Seat Belt tensioning force immediately reduced to reduce the crew by force, the special task by the Seat Belt Force Limiter to complete: In Seat Belt devices, there is a like before described pre-tightening device under the volume around the Seat Belt. Inside is a steel shaft to reverse the stick. When the load for the intended situation, reverse the sticks began to twist, so to some extent relaxed Seat Belt, Seat Belt pull achieve limited functionality.
In Seat Belt Seat Belt Pre-tightening device and the joint action of tension limiter, Seat Belt’s ability to protect almost reached the ideal state. See the so-called spirit in every detail, does give advanced passenger Seat Belt provide reliable security.
Keywords: 3 point Seat Belt, 2 point Seat Belt, Seat Belt, Auto Accessories, Seat Belt Bracket, Seat Belt Accessories, Safety Belt |
