theconrodkid
|
posted on 6/5/06 at 04:35 PM |
|
|
top seat belt mounts
i,m building a book chassis,intend using triton seats,looks like the top mounts will have to be raised above the "o" tube,anyone know by
how much as i dont have seats yet and what have peeps done to raise mounts?
who cares who wins
pass the pork pies
|
|
|
andyharding
|
posted on 6/5/06 at 04:55 PM |
|
|
Seat Belt Mounts 3
Pre SVA Prep 2
Are you a Mac user or a retard?
|
|
theconrodkid
|
posted on 6/5/06 at 05:34 PM |
|
|
cheers andy,round my way that would fail,think they have to be a tube that goes through the horizontal bar.i,m looking at mounting them on top of
"o",if no joy i will have to do it your way
who cares who wins
pass the pork pies
|
|
COREdevelopments
|
posted on 6/5/06 at 05:40 PM |
|
|
had mine from luego(rip) but think tube engineers ltd made their roll bars etc as i just recieved my exhaust from there, was alot cheaper than luego
quote! the mount are in the crossbar with some nice threaded dowels to be welded in. aint got any pics of the mounts but will try if you like.
|
|
theconrodkid
|
posted on 6/5/06 at 06:18 PM |
|
|
oh well looks like roll bar mounted then,i know how to do it thanks,just didnt want to go that route
who cares who wins
pass the pork pies
|
|
ned
|
posted on 6/5/06 at 07:35 PM |
|
|
John,
I've got mk high back fibreglass seats and did mine like this to get some extra height on the mounts:
http://www.locostbuilders.co.uk/upload/cockpit%20bulkhead.jpg
I welded the threaded tube to the extra 1" piece before i welded them onto the top rail.
Ned.
beware, I've got yellow skin
|
|
theconrodkid
|
posted on 6/5/06 at 08:15 PM |
|
|
that was my plan ned,where you get threaded tubes?
who cares who wins
pass the pork pies
|
|
ned
|
posted on 6/5/06 at 10:31 PM |
|
|
made them up on a mates lathe, though they took bloody ages! i'm sure most kit manufcaturers can supply them, mk, mnr etc etc etc
Ned.
beware, I've got yellow skin
|
|
scutter
|
posted on 7/5/06 at 11:03 AM |
|
|
John, I also used a crossbrace made form 25*50 box with a crush tube inside and a threaded plate on the underside, passed ok.
Pre sva 07
cruchtube
ATB Dan.
|
|
RoadkillUK
|
posted on 7/5/06 at 12:39 PM |
|
|
Ours are made of solid bar, drilled and tapped then welded quite solidly to the bar behind the seats.
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
|
|
kb58
|
posted on 7/5/06 at 02:38 PM |
|
|
I'm concerned a bit by the last setup. With the force of the belt applied several inches above the tube I'd expect the tube to rotate in
an accident, adding several inches of unwanted slack.
Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book -
http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html
|
|
RoadkillUK
|
posted on 7/5/06 at 04:26 PM |
|
|
Er. It's designed so that in an accident the tube will twist and therefore reduce the 'jolt' on the occupant.
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
|
|
kb58
|
posted on 7/5/06 at 09:29 PM |
|
|
Since the belts are designed to stretch up to 3" on their own, the total stretch including your twisting mount may allow the driver to impact
the steering wheel. Since the belt manufacturers specify belts be mounted to hard points (in the literal sense) that seems the right thing to do.
They've done crash testing and I don't know enough about impact deformation to second-guess their advice. How do you know your addition
works safely, do you have crash test data to back it up?
[Edited on 5/7/06 by kb58]
Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book -
http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html
|
|
JoelP
|
posted on 7/5/06 at 09:36 PM |
|
|
dont be daft kimi, if he'd crash tested it the car wouldnt be there!
New cars often have deformable mounts, to gradually give slack and to spread the impact out a little. Obviously its not a great idea trying to predict
what happens in an accident without testing and modelling, but if thats how he wants to do it...
|
|
RoadkillUK
|
posted on 8/5/06 at 04:45 PM |
|
|
I have crashed it once and the mounts didn't twist The steering rack came off and part of the front suspension needed cutting out and
replacing though
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
|
|