Quote:
Originally Posted by TButtrick
I don't think anyone would tighten the belts so much that it would compress their spine but wouldn't the roll bar attachment allow more vertical slop if you rolled? I've often wondered why this is done at all. I'd rather be cinched down tight in the car in any type of accident
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From:
http://www.circletrack.com/techartic...ion/index.html
"The end attachments of the shoulder harness must also be installed at appropriate angles. The ideal position is anywhere between five degrees below and 30 degrees above the driver's shoulder.
If the upper attachment point falls significantly below the driver's shoulder, then a spinal compression injury is likely to occur. In an accident, the shoulder belts pull down and back on the torso as they resist the forward motion of the driver. The resultant restraint force compresses the spinal column and will add to the stresses in the spine already caused by the force of the crash impact."
This has been discussed here before.
Rodger