Essay On Seat Belt

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The history of belts goes long time back. They played crucial part in the industrial revolution. Belts were introduced as the basic means of power transmission, source of motion or relative movement. Power transmission belts date back to about 200 years before. The demands on a belt drive transmission system are large and this has led to many variations on the theme the materials have changed and the shapes have undergone modifications. Starting from leather, the list has reached up to synthetic fibers without compromising on the properties of belts such as strength, durability etc. A belt drive is simple, inexpensive, and does not require parallel shafts. It helps protect a car from overload and jam, damping it from noise and vibration. …show more content…

Fundamentally, it is designed to deliver non-recoverable extension to reduce the deceleration forces, which the body encounters in a crash. Basically, it is designed to offer non recoverable extension to decrease the deceleration forces that the body comes across in a crash. Non recoverable extension is significant to prevent the occupants from being restrained into their seats and sustaining whiplash injuries right away after a collision. An efficient seat belt will only permit its wearer to move forward a maximum of about 30 cm to avoid contact with any fixed parts of the car. Seat belt was invented concurrently in United States and Sweden. Earlier seat belts were fixed and adjusted manually by the wearer. With the introduction of automatic belts today wearer has more freedom to move. [9] 2.3.2.2 NEED FOR SEAT BELTS 1. In an auto smash, seat belts prevent ejection from a moving car and stop people going through the windshield as the vehicle comes to a sudden stop. Seat belts also minimize injuries due to impact with the vehicle's hard

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