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Triton seat - harness - mounting point question
maartenromijn - 22/3/09 at 08:33 PM

Hi there.

I recently have installed my seats, and now I want to fabricate the upper harness mounts.

Do I need to raise the mounting points to clear the seat hole edge? Or should I make the hole bigger ?? When I sit in the seats, the harness will point upwards and it clears the seat.

Harness q
Harness q


When a a small person (say my wife) sits in the seat, it will not clear the seat.

Harness q2
Harness q2


Harness q3
Harness q3


The mounting points are 450 mm above the reference point.

The reason for asking: AFAIK the mounting poins can be an easier construction when not raised.


speedyxjs - 22/3/09 at 08:37 PM

I think the mounting points need to be higher than the holes in your seats.

[Edited on 22-3-09 by speedyxjs]


Miks15 - 22/3/09 at 08:45 PM

quote:
Originally posted by speedyxjs
I think the mounting points need to be higher than the wholes in your seats.


I think he means the holes in your seat


speedyxjs - 22/3/09 at 08:45 PM

Yeah, sorry its late. You cant expect me to be posting and spelling correctly this time of night

[Edited on 22-3-09 by speedyxjs]


Miks15 - 22/3/09 at 08:58 PM

haha we all do... im just in a wierd mood so not being very constructive!

I did also just recomend using a noble as a donor on another thread!


prawnabie - 22/3/09 at 09:21 PM

I think the idea is that if you have a crash with the seatbelts at the height they are, as the mounting point is lower than the top of your shoulders, they will crush your spine as you are thrown forwards!


maartenromijn - 22/3/09 at 10:16 PM

quote:
Originally posted by prawnabie
I think the idea is that if you have a crash with the seatbelts at the height they are, as the mounting point is lower than the top of your shoulders, they will crush your spine as you are thrown forwards!


Is there an optimum angle for mounting the harness? (I have TRW harnesses.)


Triton - 23/3/09 at 09:23 AM

No need to open up the holes matey, if you do you lose the rolled edge.


Humbug - 23/3/09 at 09:27 AM

Slightly OT, but I have a bracing bar running diagonally across the roll bar (see pic). I am fitting some f/g seats with harness holes which are some way above the current harness mounting points.

Instead of using the existing mounting points, would it be better to loop the harness straps over the diagonal bar? It means a) one side would be lower than the other, and b) at least one of the straps would be angled downwards from the mounting point to the harness hole, but it would avoid the problem mentioned above in the event of a crash, i.e. the strap crushing down on my shoulders.

Thoughts? Rescued attachment 2008-08-17 Rear view.JPG
Rescued attachment 2008-08-17 Rear view.JPG


maartenromijn - 23/3/09 at 11:15 AM

quote:
Originally posted by prawnabie
I think the idea is that if you have a crash with the seatbelts at the height they are, as the mounting point is lower than the top of your shoulders, they will crush your spine as you are thrown forwards!


Isn't this what the 450 mm is for?

quote:

Slightly OT, but I have a bracing bar running diagonally across the roll bar (see pic). I am fitting some f/g seats with harness holes which are some way above the current harness mounting points.



Please define 'some way'?
I would at least try to have all the mounting points at the same height.


neilj37 - 23/3/09 at 06:24 PM

quote:
Originally posted by Humbug
Instead of using the existing mounting points, would it be better to loop the harness straps over the diagonal bar? It means a) one side would be lower than the other, and b) at least one of the straps would be angled downwards from the mounting point to the harness hole, but it would avoid the problem mentioned above in the event of a crash, i.e. the strap crushing down on my shoulders.

Thoughts?


I do not think that this is acceptable as I am sure somebody posted on here within the last week that this was one of the fail points during their SVA