A safety belt is a vehicle restraint designed to safely secure a driver or passenger in a car against hazardous movement which can cause serious harm during an accident or sudden stoppage. The type of belt used for a car may vary according to the weight and size of the car, but they all basically consist of an interlocking belt system with several safety straps or tethers attached to it. Many different sizes, lengths and materials of safety belts are available, but usually include a belt buckle, tension adjusters, straps, buckle fastener, a strap that goes over the belt and a tether.
The first type of safety belt that was developed was a lap-held belt worn by drivers and passengers in the front seats of automobiles during the day. It was found that this type of belt saved many lives in an accident because it kept the legs and arms from being thrown out of position during a crash. As the seat belts became more popular and more common, other types were developed to add even more support to the belt in order to prevent injury during an accident. Belt-reinforced car seat belts were designed in order to provide more support for the head and spine while a child was strapped into a seat. The next popular restraint type was the safety belt.
The safety belt worn by passengers in a car is installed between the seating surfaces of the car's front seats. These car seat belts are often referred to as child seat belts or booster seat belts. These car seat belts are often made of cloth or foam with a molded plastic strap, which ties around the back of the child's car seat. The most recent type of safety belt is the side-brace belt, which is typically placed on the seat beside the seat belt. The side-brace belt uses a series of straps that connect to each other and a buckle and provides support for the back of the passenger's seat, shoulders and hips.