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==Structure==
==Structure==
The five-point harness is proven to be more advantage in safety compared to other designs of seat belts. The five-point harness consists of five straps, two at the shoulders, two at the hips, and one at the crotch that all come to a buckle release mechanism. This way of buckling up holds the driver's body tightly in the seat, which in turn protects the upper body from injury. The only downfall to this seat belt mechanism is the insecurity of the head. There have been many different models of helmets designed to hold the drivers head in place.
The five-point harness is preferred as a safety mechanism for a high amount of safety compared to other designs of seat belts. The five-point harness consists of five straps, two at the shoulders, two at the hips, and one at the crotch that all come to a buckle release mechanism. This way of buckling up holds the driver's body tightly in the seat, which in turn protects the upper body from injury. The only downfall to this seat belt mechanism is the insecurity of the head.


==Helmet==
==Helmet==
A helmet restraint is equipped in some five-point harness seats to prevent brain and neck injury. For example, in NASCAR, this plays a large role to protect the driver in case of a car crash or an immediate change of velocity where the driver has limited control of his momentum. The apparatus consists of a strap that runs from either the sides form the helmet to the vehicle or a strap connected to the vehicle on both sides but runs across the front of the helmet instead of two independent straps on each side attached to the helmet.
There have been many different models of helmets designed to hold the drivers head in place. A helmet restraint is equipped in some five-point harness seats to prevent brain and neck injury. For example, in NASCAR, this plays a large role to protect the driver in case of a car crash or an immediate change of velocity where the driver has limited control of his momentum. The apparatus consists of a strap that runs from both of the sides of the helmet to the vehicle; or a strap connected to the vehicle from both sides of the driver that runs across the front of the helmet instead of two independent straps on each side attached to the helmet.
===Straps===
===Straps===
These straps are made up of shock absorbing material used when climbing or for security when working at high elevations. The use of straps, that are stretchable rather than firm, is due to increase of injury when using firm straps. Straps that are stretchable allow the drivers brain to slow down to avoid brain damage from slamming into the skull but do not let the head move too far forward to cause neck injuries.
These straps are made up of shock absorbing material used for climbing or for security when working at high elevations. The straps include a woven nylon that requires up to 475lbs. of force to cause the straps to tear. Due to increase of injury when using firm straps, stretchable straps are used, rather than firm ones. Straps that are stretchable allow the drivers brain to slow down to avoid brain damage from slamming into the skull but do not let the head move too far forward to cause neck injuries.
==Child Care==
==Child Care==
There is also a five-point harness used to buckle up children. It is designed with the same concept of tightly holding the passenger to the seat with the use of five different kind of straps. This form of seat harness for young children "should be a default standard" when children are present in a motor vehicle. The reason there has been a number of injured children in survivable accidents is due to incorrect use of the Children Safety Seat(CSS).
There is also a five-point harness used to buckle up children. It is designed with the same concept of tightly holding the passenger to the seat with the use of five different kind of straps. This form of seat harness for young children "should be a default standard" when children are present in a motor vehicle. The reason there has been a number of injured children in survivable accidents is due to incorrect use of the Children Safety Seat(CSS).

Revision as of 22:40, 4 February 2010

Five-Point Harness


A five-point harness is a form of seat belt that contains five straps bolted onto the car frame. It has been engineered for an increase of safety in the occurrence of an automobile accident. This form of seat belt is mandated in the race car competition of NASCAR. This was an invention made mandatory due to the constant change of direction found in the sport. Along with the design of the seat belt, helmet straps have been design to increase the safety of the driver. Also, this form of seat belt is used in child safety seats.


Structure

The five-point harness is preferred as a safety mechanism for a high amount of safety compared to other designs of seat belts. The five-point harness consists of five straps, two at the shoulders, two at the hips, and one at the crotch that all come to a buckle release mechanism. This way of buckling up holds the driver's body tightly in the seat, which in turn protects the upper body from injury. The only downfall to this seat belt mechanism is the insecurity of the head.

Helmet

There have been many different models of helmets designed to hold the drivers head in place. A helmet restraint is equipped in some five-point harness seats to prevent brain and neck injury. For example, in NASCAR, this plays a large role to protect the driver in case of a car crash or an immediate change of velocity where the driver has limited control of his momentum. The apparatus consists of a strap that runs from both of the sides of the helmet to the vehicle; or a strap connected to the vehicle from both sides of the driver that runs across the front of the helmet instead of two independent straps on each side attached to the helmet.

Straps

These straps are made up of shock absorbing material used for climbing or for security when working at high elevations. The straps include a woven nylon that requires up to 475lbs. of force to cause the straps to tear. Due to increase of injury when using firm straps, stretchable straps are used, rather than firm ones. Straps that are stretchable allow the drivers brain to slow down to avoid brain damage from slamming into the skull but do not let the head move too far forward to cause neck injuries.

Child Care

There is also a five-point harness used to buckle up children. It is designed with the same concept of tightly holding the passenger to the seat with the use of five different kind of straps. This form of seat harness for young children "should be a default standard" when children are present in a motor vehicle. The reason there has been a number of injured children in survivable accidents is due to incorrect use of the Children Safety Seat(CSS).


This is needed in a harness in order to stabilize the driver while he/she concentrates in their driving.

References


1. Buckle Up!It's Not Enough

2. Head Restraint System for Racecar Drivers

3. Driver Head Restraint

4. Fasten their seatbelts: legal restraint of children in car seats and road ambulances.

5.How NASCAR Safety Works