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Head Restraints - Don't Be A Bobble Head

Head Restraints For The Saturday Night Racer
From the February, 2009 issue of Stock Car Racing
By Sleepy Gomez
Photography by Sleepy Gomez, Chuck James, Staff Photos, Courtesy G-Force
Head Restraints
Head Restraints Crash Diagram
Head Restraints Graph
The two leftmost columns represent... 
   
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Head Restraints Graph
The two leftmost columns represent impact force (in Newtons) for sled test crashes. The two baseline measurements (Baseline 1 and Baseline 2) were recorded on crash-test dummies wearing seatbelts but no head-and-neck restraints. The three devices tested-the original Hutchens Device, the HANS Device, and the improved Safety Solutions unit-show the benefits of restraints by how much force they take away from the vital head/neck area. Note the line just above the 4,000 level on the graph. Anything above that line in terms of measured force will cause head or neck injury. Anything over 8,000 Newtons is considered in the lethal range.
Head Restraints Hutchens Device
A rear view of the original... 
   
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Head Restraints Hutchens Device
A rear view of the original Hutchens Device. The two long, vertical straps are the key to controlling head motion in a crash, using the lap belt as its anchor.
Head Restraints D Cel Device
A rear view of the updated... 
   
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Head Restraints D Cel Device
A rear view of the updated D-cel device. Note the straps that cross the back instead of running along the spine.
Head Restraints Simpson Diagram
The Simpson Head and Neck... 
   
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Head Restraints Simpson Diagram
The Simpson Head and Neck Restraint is similar to the D-cel; it is worn by the driver, and an attachment to the lap belt buckle is not necessary.
Head Restraints Chart
This chart shows the results... 
   
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Head Restraints Chart
This chart shows the results of sled-testing on the G-Force SRS-1.

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Head Restraints Sled Testing Head Restraints G Force SRS 1
Head Restraints G Force Unit

 

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