HANS type device without harnesses?
Discussion
Shaun_E said:
The Simpson still needs to be anchored by harness straps.
According to Simpson the Hybrid S works with 3 point harness. Check their web site. After smashing into a car in front (i was in the passenger seat, golf mk6 GTI) at decent speed on the motorway(not very high-speed, but still 10k of repairs) i got neck pain for years after that, it would have been much worse with a helmet on due to the weight. I was surprised that the airbags didn't trigger. So a hybrid device could be helpful even in a modern car to reduce the neck strain, especially if you use a full face helmet which is heavy.
What ever happened to the CG-Lock?
That used to be what people used on a 3-point belt on track when I was a lad...
hmm.. quick google brings this up.
https://www.pistonheads.com/gassing/topic.asp?t=16...
That used to be what people used on a 3-point belt on track when I was a lad...
hmm.. quick google brings this up.
https://www.pistonheads.com/gassing/topic.asp?t=16...
Boggo said:
3 point harnesses still have two shoulder straps, they just bolt to the same place rather than two places
I think we're mixing up 3-point retractable belt (the normal type in a modern car) and a 3-point harness (two straps over the shoulders, 1 strap through the knackers).mmm-five said:
I think we're mixing up 3-point retractable belt (the normal type in a modern car) and a 3-point harness (two straps over the shoulders, 1 strap through the knackers).
3 point harnesses have two shoulder straps that join together before a single rear mount point, plus a lap belt mounting on both sides of the hip point. You don't strap over your knackers. 
mmm-five said:
jsf said:
3 point harnesses have two shoulder straps that join together before a single rear mount point, plus a lap belt mounting on both sides of the hip point. You don't strap over your knackers.
That's why I was in so much pain then 
Just to be clear, Simpsons definition of 3 point harness is the 3 point retractable belt that are in every car. Its tested together with the auto manufacturers in the US.
Check around the 21min mark to get some numbers from the testing.
https://www.youtube.com/watch?v=30mjEbQ7RbY&in...
Check around the 21min mark to get some numbers from the testing.
https://www.youtube.com/watch?v=30mjEbQ7RbY&in...
Edited by CedricN on Tuesday 1st December 10:57
Those interested in Simpson hybrid devices and three-point seatbelts might find the links below interesting. Martin
https://www.pistonheads.com/news/ph-porsche/gunthe...
https://youtu.be/uSXbKWNZ8Bs (at 24 seconds)
https://www.pistonheads.com/news/ph-porsche/gunthe...
https://youtu.be/uSXbKWNZ8Bs (at 24 seconds)
Apologies if someone else covered this, didn't read all the replies but plenty saying that really you need a proper harness too.
In a 3 point inertia system the effect is less marked, as it's designed for a level of torso movement and twist around the belt. Vs harness where your body stays put and head keeps going.
There is a good video on youtube from robert at apex on the different approaches
In a 3 point inertia system the effect is less marked, as it's designed for a level of torso movement and twist around the belt. Vs harness where your body stays put and head keeps going.
There is a good video on youtube from robert at apex on the different approaches
mf993 said:
Those interested in Simpson hybrid devices and three-point seatbelts might find the links below interesting. Martin
https://www.pistonheads.com/news/ph-porsche/gunthe...
https://youtu.be/uSXbKWNZ8Bs (at 24 seconds)
Why would they go to all that effort on that car and not put a proper harness in?https://www.pistonheads.com/news/ph-porsche/gunthe...
https://youtu.be/uSXbKWNZ8Bs (at 24 seconds)
Nampahc Niloc said:
Why would they go to all that effort on that car and not put a proper harness in?
It's a road car shell without a rollcage, no anchor points stronger than what is being used on the 3 point belt, also in a rollover you'd be safer in a 3 point as you have side movement if the roof caves in.With a four point harness if the roof caves you are at more risk of getting a crushed spine.
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