JC
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| posted on 27/9/12 at 09:33 AM |
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Seat belt mounts - strong enough?
Hi All,
Just doing some tidying before welding the rear bulkhead in whilst access is a bit easier! These mounts are the plates that you buy from rally
designs etc. They are about 2mm thick. Do I need to put a thicker plate onto them to strengthen them or will these be strong enough? (I know some of
the welds need re-doing...)
Thanks
JC
[img]
 
seat belt mounts
[/img]
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owelly
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| posted on 27/9/12 at 09:40 AM |
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The belts or your abdomen will give way long before 2mm steel will.
http://www.ppcmag.co.uk
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pewe
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| posted on 27/9/12 at 09:52 AM |
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I agree with Owelly but if it were me I'd be triangulating the plate towards the rear on top of the horizontal tube running across the car and
towards the front as well.
That way the plate is unlikely to flex under load - more contact area and less likely for Mr IVA to object - they don't call it belt and braces
engineering for nothing!
HTH.
Cheers, Pewe10 
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designer
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| posted on 27/9/12 at 10:31 AM |
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The brackets are strong enough, just a crude design!
A triangular bracket in 3mm would be a lot stronger and look better.
 
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JC
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| posted on 27/9/12 at 10:43 AM |
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Pewe, great idea. Amazing how you can look at something for ages (err, years?) and miss the completely obvious! Thanks Owelly for the confidence
boost and Designer for the diagrams! Back to the grinder!
Cheers!
JC
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loggyboy
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| posted on 27/9/12 at 11:15 AM |
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Standard Raw Striker ones similar to how Pewe describes:
(front hole is seatbelt, rear hole is a dif mount, middle hole is weight loss)
[Edited on 27-9-12 by loggyboy]
Mistral Motorsport
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adithorp
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| posted on 27/9/12 at 11:27 AM |
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Difficult to tell but it appears you are intending to put the belts/bolts on from the nut side. If so they'd be better with the plates reversed
so bolt through from the plate side. Otherwise you're relying on the welds holding the nut to the plate.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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JC
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| posted on 27/9/12 at 12:24 PM |
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To clarify, the belts do go in from the plate side
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