Everybody knows what happens in an accident if you don’t wear a seatbelt. What you see in this accident looks really painful in slow motion. Modern seatbelts are not just mechanisms which arrest your motion; rather. they cleverly allow enough movement to minimise internal injuries and help you land safely on an airbag. In this video, we won’t just learn the working of a seatbelt; we will learn why modern seatbelt mechanisms are designed the way they are. So buckle your seatbelt, and let’s start a design journey.
Seat belts have been instrumental in saving countless lives over the years. However, early seat belts were totally different from the current design.
In this video, we have explained the 2-point support system and the current 3 point support system. The key notion of 3 point seat belts is to help the persons to avoid all 3 types of collision.
There is a specific component called retractors which locks the seat belt right when a collision occurs.
There are 3 types of retractors,
Inertia/Non-Locking Retractors - This is a passive system that locks your seatbelts when a collision occurs but does not lock under normal circumstances.Centrifugal/Emergency Locking System - It is a locking mechanism that uses centrifugal force to lock the seat belt. Hence you can’t pull the seat belt forcefully as centrifugal locks the frame.
Pretensioners - The pretensioner system has a small explosive charge. When a collision occurs, the explosive will also trigger the airbag module pulling the seat belt backwards preventing the passenger from being flung forward.
About Skill-Lync
Skill-Lync helps you learn industry-relevant skills that will accelerate your career. More than 8000+ students have enrolled in courses across Mechanical, Electrical, Electronics, Civil & Computer Science engineering. We are rated 4.8/5 on Google out of 1000+ reviews. Our students now work in companies like Fiat Chrysler, Tata Motors, Ford, Ather, Mercedes Benz, Bosch, and many more.
Everybody knows what happens in an accident if you don’t wear a seatbelt. What you see in this accident looks really painful in slow motion. Modern seatbelts are not just mechanisms which arrest your motion; rather. they cleverly allow enough movement to minimise internal injuries and help you land safely on an airbag. In this video, we won’t just learn the working of a seatbelt; we will learn why modern seatbelt mechanisms are designed the way they are. So buckle your seatbelt, and let’s start a design journey.
Seat belts have been instrumental in saving countless lives over the years. However, early seat belts were totally different from the current design.
In this video, we have explained the 2-point support system and the current 3 point support system. The key notion of 3 point seat belts is to help the persons to avoid all 3 types of collision.
There is a specific component called retractors which locks the seat belt right when a collision occurs.
There are 3 types of retractors,
Inertia/Non-Locking Retractors - This is a passive system that locks your seatbelts when a collision occurs but does not lock under normal circumstances.Centrifugal/Emergency Locking System - It is a locking mechanism that uses centrifugal force to lock the seat belt. Hence you can’t pull the seat belt forcefully as centrifugal locks the frame.
Pretensioners - The pretensioner system has a small explosive charge. When a collision occurs, the explosive will also trigger the airbag module pulling the seat belt backwards preventing the passenger from being flung forward.
About Skill-Lync
Skill-Lync helps you learn industry-relevant skills that will accelerate your career. More than 8000+ students have enrolled in courses across Mechanical, Electrical, Electronics, Civil & Computer Science engineering. We are rated 4.8/5 on Google out of 1000+ reviews. Our students now work in companies like Fiat Chrysler, Tata Motors, Ford, Ather, Mercedes Benz, Bosch, and many more.
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