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:yeahthat: ALthough I can see why some people question it.Yes, the do expire. They don't take the same KIND of force as a harnessed seat in a crash, but they do absorb *some* force. I would not use an expired booster.
Yes, the do expire. They don't take the same KIND of force as a harnessed seat in a crash, but they do absorb *some* force. I would not use an expired booster.
I disagree. Part if the purpose of the booster is to lesson the force on the immature hip bones of a child - so the booster dos absorbg siginifcant force, especially if we're talking about a LOW-back booster in which the "armrests" are really belt guides.
Some have argued that a high back booster takes or absorbs some crash load. However, to my knowledge, there is no hard evidence for this view. The seat belt takes the crash load when children are in a booster. Crash forces are directed forward in the most common type of crash, away from the booster. Indeed, that is why boosters are supposed to be light weight so that they do not apply additional load to the back of the child (as they are not attached in any way to the car). There may be some exceptions, as there are to any view.
If the child is moving forward in a crash, the hips will impact the seat belt, and there would be no forward force caused by the child's weight that is reduced or taken up by the arm rests (as the booster is moving in the same direction as the child). The object that is stopping the child is the seat belt. Load would likely be measured at the points of impact, the child's hips and chest.
The whole point of a booster is so the seat belt can do the job it is supposed to do, keep the passenger in the vehicle and ride down the crash force. A booster positions the occupant correctly, so the seat belt works properly. Absent additional features, such as side impact protection (which might degrade) a general booster seat should not expire.
may lead to loss of credibility which we should all avoid.
I agree. Always check the manual and or the seat. Abide by what is posted. However, a blanket statement that boosters expire, without foundational background to support the statement, may lead to loss of credibility which we should all avoid.
I agree. Always check the manual and or the seat. Abide by what is posted. However, a blanket statement that boosters expire, without foundational background to support the statement, may lead to loss of credibility which we should all avoid.
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