Modern Seat Belts Have Locking Mechanisms That Are Triggered By

The first system triggered by the car s movement locks the spool when the car faces rapid deceleration such as when it comes in contact with another vehicle or object.

Modern seat belts have locking mechanisms that are triggered by.

A seatbelt also known as a seat belt or safety belt is a vehicle safety device designed to secure the driver or a passenger of a vehicle against harmful movement that may result during a collision or a sudden stop. The most important part of a seat belt is the spool s locking mechanisma device that makes the belt hold tight in the unfortunate event of a crash. Systems triggered by the belt s movement systems triggered by the car s movement the pretensioner. Seat belts have operated with an.

Modern seat belts are reliable but difficult to test. Most seat belts have locking mechanisms built into the retracting mechanism. Modern versions of seatbelts contain a system called pretensioner. A combination of a lap and shoulder belt that secures the lap and chest area to the locking mechanism securely.

A retractor usually consists of a spool a locking mechanism and a sensing system. Several dozen children have nearly strangled to death after finding an unused seat belt and in the midst of playing with it wrapped it around their necks. Systems activated by a car s movement and systems initiated by the seat belt movement are commonly seen today. The spool is used to wind and tighten the seat belt and it is made of a spring and a gear.

In the event of a collision the spool is prevented from rotating by a locking mechanism present within the retractor. Not all cars are equipped with belt in seat type it s the 3 point elr type but connected to back seat. The spool locks when the vehicle decelerates rapidly like when the vehicle is in a collision. Called an automatic locking retractor alr this seat belt design is a safety feature intended to hold a child car seat in place.

This is best for children and keeps them locked in no matter what. The seat belt retractor also has a locking mechanism that stops the spool from rotating. Shoulder seat belt retractors are located close to drivers or passengers ears and are prone to make rattle noises if rattle prevention measures are not in place. The retractor can be triggered by the car s movement.

A seat belt reduces the likelihood of death or serious injury in a traffic collision by reducing the force of secondary impacts with interior strike hazards by keeping occupants. The locking mechanism is activated either by the. Two types of locking systems are used in today s cars. In misuse conditions such as when a child pulls a seat belt all the way out the alr activates locking the seat belt in place and.