To reduce the possibility of injury during emergency braking or accidents, and to avoid serious injury or even death, please follow the precautions below.
1. Wear seat belts correctly
It is very dangerous for the driver to sit in an incorrect position or wear seat belts incorrectly. Due to the incorrect wearing position of the seat belt, the pretensioner and force limiter system cannot provide adequate protection, which may cause serious personal injury.
Not wearing seat belts is very dangerous. During a collision, passengers who do not wear seat belts may collide with other people or objects in the car, or may even be thrown out of the car, resulting in serious injury or even death. In the same collision, passengers wearing seat belts will be safer.
2. Do not wear a twisted seat belt
Twisted seat belts are very dangerous. During a collision, the seat belt will not be able to fully utilize the entire width to absorb the impact force, so that more force is applied to the bones under the seat belt, which may cause serious personal injury or even death. Do not use multiple passengers to share a seat belt at the same time
It is very dangerous for multiple passengers (including children) to share a seat belt. Because the seat belt cannot properly disperse the collision force, the passengers will collide with each other, causing serious personal injury or even death.
3. Precautions for using adjustable shoulder anchors (front seats)
Always make sure that the shoulder belt crosses the middle of the shoulder. The seat belt should be away from the neck, but it should not slide off the shoulder. Otherwise, the protective effect of the seat belt will be reduced in the event of an accident, which will cause serious personal injury or even death in emergency braking, emergency steering or accidents.
4. Do not tilt the seat too much
Do not tilt the seat too much for comfort. Because the seat belt can only play a greater protective role when the passenger sits upright with his back against the seat.
5. Do not drive the vehicle with a damaged seat belt
It is very dangerous to use a damaged seat belt. An accident may cause the seat belt to be damaged. A damaged seat belt will not provide adequate protection in a collision. Before using the seat belt again after an accident, all seat belt systems must be thoroughly checked by professionals.
6. Seat belt pretensioners
Like airbags, seat belt pretensioners can only be used once and must be replaced after a collision. If they are not replaced, the risk of serious injury to the occupants will increase in the event of another collision. If your car is involved in a collision, always contact a specialist to replace your seat belts.
7. Damage and wear of seat belts
Do not allow the door to pinch the seat belt, tongue or buckle, otherwise the seat belt may be damaged.
The seat belt device must be checked regularly. Check the seat belt parts for cuts, wear and looseness. Do not use the seat belt if it is damaged, and replace it. A damaged seat belt will not protect the occupants properly, which may result in serious injury or death.
Make sure the seat belt tongue and buckle are locked and the seat belt is not twisted.
Correct use
The driver should move the seat as far back as possible so that there is enough space for the airbag to fully play its protective role after an accidental expansion. The driver should not lean forward to control the car, and the sitting posture should be correct and close to the seat back, and the seat belt should be fastened. Children under 12 years old should sit in the back seat of the car and fasten the seat belt. Children weighing no more than 18 kg should be placed in the back seat equipped with a child seat device and fasten the seat belt.
Precautions
Generally, airbags have a validity period of 8-10 years. During daily driving, as long as the airbag indicator light or fault light on the dashboard is not on, it proves that the airbag is in normal working condition. But this does not mean that this is enough. We should also pay attention to the following points during use:
First, we should never knock or hit the part where the airbag is located at any time. We should not use water to directly rinse the airbag position, because the damp airbag cannot protect your life at a critical moment.
Then there is the sitting position. Generally speaking, the driver should not lean forward when driving, and the sitting position should be close to the seat. The backrest should be adjusted to be able to control the car comfortably, so that there will be enough space for the airbag to fully play its protective role after an accident.
For vehicles with airbags in the co-pilot position, children must not be allowed to sit in the front row or place child seats in this position, unless the airbag in this position can be manually turned off, otherwise the airbag will cause great harm to the child when it is detonated.
Finally, it is worth noting that if the seat belt is not fastened, the airbag will not only fail to protect the occupants, but also cause serious injuries to the occupants, because the explosive force of the airbag is amazing, enough to severely injure the driver. Passengers should fasten their seat belts when getting in the car, otherwise the airbag may pop out in the event of a car accident, which may cause more serious injuries to the passengers.
Seat belts are basic protective devices used to protect drivers and passengers during car collisions. They first appeared and were used on horse-drawn carriages to prevent passengers from falling off the carriages. On May 20, 1902, at a car race in New York, a racer tied himself and his companions to their seats with several belts to prevent being thrown out of the car at high speed. During the race, the car they were driving accidentally crashed into the audience, killing two people and injuring dozens of people, but these racers survived because of the belts. These belts became the prototype of car seat belts. When they were used in cars for the first time, they saved the lives of users.
In 1959, Volvo engineer Nils Bohlin invented the modern three-point seat belt and provided the patent to the world for free. In the 1940s, General Motors took the lead in making seat belts standard on Buick cars. As seat belts saved more and more lives, people gradually realized the important role of seat belts, and countries around the world passed legislation to make the installation and use of seat belts mandatory. Since the introduction of seat belts, 10 million kilometers of seat belts have been installed in more than 1 billion cars around the world, which is long enough to circle the earth's equator 250 times. In the past 40 years, countless lives have been saved by seat belts, proving the role of seat belts as "life protection ropes".
Tests by international research institutions show that the impact force of a car hitting a wall at a speed of 50 kilometers per hour is equivalent to falling from a height of 10 meters (about the height of a 3-story roof) to a concrete floor. When a car collides at a speed of 50 kilometers per hour, the impact force of a full frontal impact on a person weighing 50 kilograms will reach 1.5 tons; the forward impact energy acting on a four-year-old child who is neither wearing a seat belt nor using a child seat is 30 times the child's weight! This shows that when a high-speed car collides or brakes in an emergency, it will generate a huge inertial force, which can cause the driver and passengers to collide with objects such as the steering wheel, windshield, seat backs, doors, etc. in the car, and even throw the driver and passengers out of the seat or out of the car. The cushioning effect of the seat belt can absorb a large amount of impact energy, dissolve the huge inertial force, and firmly bind the driver and passengers to the seat to prevent the body from colliding with hard objects in the car or being thrown out of the car.
The function of the car seat belt is that once the vehicle collides or emergency braking is used, the pre-tensioning device will instantly tighten the loose seat belt when worn, and firmly tie the occupant to the seat to prevent accidents. Once the tightening force of the seat belt exceeds a certain limit, the force limiting device will appropriately relax the seat belt to keep the chest force stable.
The car seat belt is an effective safety protection device, known as the "life belt", which can prevent people from being injured in traffic accidents or reduce the degree of injury in the event of an accident. The driver and passengers who wear seat belts have twice the chance of surviving an accident than those who do not wear seat belts, and can also reduce the chance of injury by 50%. According to foreign statistics, the accident death rate of drivers who do not wear seat belts is about 37.7 times that of those who wear seat belts; the accident death rate of front-seat passengers who do not wear seat belts is about 10.6 times that of those who wear seat belts; the accident death rate of rear-seat passengers who do not wear seat belts is about 3.1 times that of those who wear seat belts. The death rate and serious injury rate of not using child safety seats are about 2.5 times that of using child safety seats. Car seat belts can not only effectively reduce casualties in traffic accidents, but also ensure correct driving posture and reduce driver fatigue.
After a car collision, the most common injuries to drivers and passengers are fractures or contusions of the head, chest, abdomen, and upper limbs. If the seat belt is used correctly, the injuries to drivers and passengers will be relatively reduced in the event of an accident. According to data, the use of waist and shoulder seat belts can reduce the number of deaths and serious injuries by about 40% to 50%. In a frontal collision accident, the use of seat belts can reduce the head and face injury rate by about 60%. The possibility of people who do not use seat belts being ejected from the car after a collision and the time they spend in the hospital for treatment after being injured are 10 times higher and 2 to 4 times higher than those who use seat belts. Practice has proved that the use of seat belts is an effective, convenient and economical safety measure.
Car seat belts are so important for protecting lives, but unfortunately, many people always ignore them. Not wearing seat belts is the third leading cause of road traffic deaths, second only to speeding and drunk driving. In addition, many drivers also have misunderstandings about the role of seat belts, believing that wearing seat belts is very effective when the speed is high; and there is no need to use seat belts when the speed is low. In fact, when a car is driving at a slower speed, if a collision or emergency braking occurs, although the inertia force generated is relatively small, it is still enough to make the driver and passengers unable to control their bodies and collide with the hard parts of the car such as the steering wheel and windshield, causing damage to the body.
Although seat belts can reduce and protect the degree of injury and casualties of drivers and passengers in traffic accidents such as car collisions, they must be used correctly, otherwise their role will be greatly reduced. First, check the technical status of the seat belt regularly. If there is any damage, replace it immediately. Secondly, to use it correctly, the three-point waist seat belt should be tied to the hip as much as possible, not to the waist, and the shoulder seat belt should not be placed under the arm, but should be slanted across the chest. It can only be used by one person, and it is strictly forbidden to use it with two people. Do not twist the seat belt when using it. Third, when using the seat belt, do not let it press on hard and fragile objects, such as mobile phones, glasses, pens, etc. in your pocket. Fourth, do not let the seat back tilt too much, otherwise it will cause the seat belt to not stretch or shrink normally, affecting the use effect. The buckle of the seat belt must be fastened to prevent it from falling off when subjected to external force and failing to play a protective role.
For your life safety and family happiness, whether on urban roads, highways, or low-grade roads, whether drivers or passengers, you must fasten your seat belt according to regulations.
----------From China New
An airbag is actually one component of a three 3part system that protects the occupants of a vehicle in the event of a crash. The system consists of airbag module, crash sensor, and diagnostic unit. Newer vehicles may also have an on/off switch that allows the system to be turned off.
The airbag module (is the actual "airbag") is a bag made of lightweight fabric and is located on the steering wheel pad or center console of the dashboard along with the inflator module. It consists of the inflator unit and the lightweight fabric airbag. The driver's airbag is much smaller than the passenger's airbag due to the distance between the airbag and the occupant and the physical space the airbag is housed in.
The crash sensor is usually located on the vehicle's bumper or grille, but may be located in the dashboard or passenger compartment in some models. There may be only one sensor or multiple sensors in a vehicle. Although it is commonly believed that the sensors are activated by impact, they are actually triggered by the rapid deceleration or rate of deceleration of the vehicle. Therefore, the sensors do not activate at the same rate in different speeds and crashes. Sudden braking, or driving over rough or uneven roads, will not usually produce enough deceleration rate to trigger the sensor to activate the system if the system is functioning properly.
The final component is the diagnostic unit, which monitors the status of the airbag system. When the vehicle ignition is on, the diagnostic unit checks for functional problems within the system and illuminates a warning light to alert the driver that the system is not functioning properly. To protect against power failure, most diagnostic units store enough power to trigger the airbag if the vehicle battery is damaged in a collision.
When the vehicle decelerates sufficiently, the airbag is designed to perform two main functions. The airbag is designed to provide a soft "cushion" between the occupant and the hard surfaces inside the vehicle and to spread the energy of the collision over a wider area. The deceleration sensor triggers the inflation of the airbag during rapid deceleration and deflates it within a few seconds. A front-end collision with a solid, stationary object, such as a tree, at speeds of 10 to 15 miles per hour (equivalent to a 28 mph front-end collision with another vehicle, as the other vehicle absorbs some of the energy) triggers inflation, activating a mechanical switch that closes electrical contacts, signaling the sensor that a collision has occurred. The airbag's inflation system contains sodium&azide (NaN3) and potassium nitrate (KNO3), which combine to produce nitrogen gas. The nitrogen mixture inflates the airbag at speeds approaching 200 miles per hour.
When an airbag is functioning properly, it can reduce the frequency and severity of injuries in a vehicle accident. The effectiveness of a properly functioning airbag is enhanced by wearing a lap/shoulder restraint, such as a seat belt, and a structurally sound vehicle roof.
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