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The RFing tether isn't mandatory to use with your seat and there is some controversy over whether it is better to tether or not.
Rear tethering ensures that the seat does not over rotate in a side or rear impact crash (IE swing side to side) or bounce up and down. A rear facing seat does do some bouncing in a front end collision (the most common and dangerous kind) - sometimes coming up to meet the seat (called cocooning). When the seat bounces like this, the rebound force is mostly taken by the seat, not the child. When tethered, the seat stays put, but on the rebound it is your child that could be taking this rebound force.
taken from http://www.carseat.org/Technical/tec....htm#rearfacFF
Quote:
Based on this information, I personally would tether an older rear facing child but not an infant.
It is your choice. How old is you child?
The thing that you need to attach your tether is called a d-ring and is pictured here:
http://www.childrestraintsafety.com/...tethering.html
and modeled here:
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I am a Canadian Technician who has never updated her sig
The RFing tether isn't mandatory to use with your seat and there is some controversy over whether it is better to tether or not.
Rear tethering ensures that the seat does not over rotate in a side or rear impact crash (IE swing side to side) or bounce up and down. A rear facing seat does do some bouncing in a front end collision (the most common and dangerous kind) - sometimes coming up to meet the seat (called cocooning). When the seat bounces like this, the rebound force is mostly taken by the seat, not the child. When tethered, the seat stays put, but on the rebound it is your child that could be taking this rebound force.
taken from http://www.carseat.org/Technical/tec....htm#rearfacFF
Quote:
| Tests conducted by a competitor a few years ago showed that dummy neck loads increased significantly when the restraint was tethered to the floor in both frontal and rear impacts. This would be more of a concern with the youngest infants than with children over 9 months to a year, but the competitor decided not to offer rear-facing tethers. The restraint models on which the rear-facing tether is offered, however, can accommodate a child up to 33 lb rear facing, and for this usage the limit on rebound or rear-impact motion may be beneficial. Although crash experience indicates that rebound of infant-only restraints in frontal impacts does not cause serious injury, similar movement of a rear-facing restraint can also occur during a severe rear impact or offset rear impact, which can result in serious injury or death if the infant's head hits the rear door pillar of a sedan, the rear window of a pickup, or some other hard surface. As larger and heavier infants are carried rear-facing, the chance of an infant's head hitting a hard part of the vehicle is greater. Tethering a rear-facing convertible CR to the floor can reduce the risk of head and facial injuries in rear and side crashes by reducing head excursion. |
Based on this information, I personally would tether an older rear facing child but not an infant.
It is your choice. How old is you child?
The thing that you need to attach your tether is called a d-ring and is pictured here:
http://www.childrestraintsafety.com/...tethering.html
and modeled here:
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